Die meisten Entwickler nutzen den Android-Emulator ja wahrscheinlich dafür, selbst entwickelte Programme komfortabel zu testen. Es gibt aber auch noch einen weiteren interessanten Einsatzzweck, den Gaby Becker in einem Blog-Beitrag beschrieben hat.
Es geht hierbei um die Möglichkeit, über den Android Market Apps im Emulator zu installieren und diese dann sowohl lokal zu nutzen oder für Präsentationen zu nutzen.
Gaby Becker: Präsentieren mit dem Emulator
Finally there is a usable Bitcoin Wallet for mobile Android Devices. It features some good ideas like QR-Codes for address sharing and a predeployed, stripped-down blockchain. This inflates the whole app to 20MB, but you don’t have to download the whole blockchain afterwards.
The wallet can backup your data to your google account and prevents a fatal loss if your phone crashes or gets lost. But in case of the thievery you are stuck unless you are fast enough to transfer the coins to another address.
One thing I miss is a possibility to use the same wallet on several devices.
You can get the app for free on the android market or with this QR:
We can now hope, that there will be more shops to accept bitcoins as payment.
One final reason why this app rocks: it’s open source 
As predicted in my article about the official Froyo (2.2) ROM for Motorola Defy now the next step: Gingerbread (2.3)
First a quick glance at the advantages. Let me quote the german wikipedia.
And finally: it’s much faster than Froyo (2.2).
There are currently several possibilities to upgrade to Gingerbread. First, you could use a leaked (?) Gingerbread 2.3.3 Build 4.5.1-112. But this build will leave you with a non functional camera if you have an older Defy whose camera has a green lens. Only owners of new Defys with the red lens will be happy with this.
A better choice would be the CyanogenMod 7 RC0 CyanogenMod 7 RC1 CyanogenMod 7 RC1v2 which includes a Gingerbread 2.3.4 and a lot of tweaks to speedup your Defy. I found only one issue with CyanogenMod: your camera will make funny pictures if you zoom to 4x or higher.
To install CynanogenMod, you’ll need a 2.2 Defy which is rooted. On the marked you’ll find the 2nd init App. It allows you to boot a second bootloader after the original Motorola bootloader has loaded. This opens the door for CustomROMs like CyanogenMod.
Before launching 2nd init, you should download CyanogenMod and the latest Google Apps to your phone’s SD-Card.
Afterwards you can launch 2nd init and install the new boot-environment. Then, you should reboot your phone and end in recovery-menu. Select Custom Recovery and then wipe your phone by choosing Wipe cache/factory reset. If this has succeeded, you can install the CM7 Zip and then the Google-Apps Zip by selecting Install zip from sdcard.
The final step is to reboot your device and then configure CM7
To optimize your reception, you should start the DEFY Baseband Switcher from the menu and select Europe RT 3.4.2-145.
Congratulations, you have successfully installed Cyanogenmod 7 on your Defy! Following are some screenshots of the new system and a benchmark with 800 Mhz.
Overclocking is quiet easy with CyanogenMod. Just enter the Settings-Menu, click Performance and then CPU-Settings. Here you can set your CPU-Speed.
If you want to switch back to 2.2 (don’t know why you should…) you can just download the SBF for the official 2.2 and install it via RSD-Lite.
Further information can be found in the german Android-Hilfe Forum.
Update 2011-06-26: RC1 of Cyanogenmod 7 released, see text
Update 2011-06-28: and RC1v2 released.
One week ago, O2 Germany started to distribute Froyo (Android 2.2) for the Defy. My second Defy, which I got from O2 was updated without any problem.
Today, Motorola released the update for all other phones.
The required .exe can be downloaded from here: Motorola Software Update
If you don’t want to use the Motorola Software Update, you can google the required SBF and install it via RSD-Lite:
Google it for me
Next target: Gingerbread (2.3)
Have fun
As golem.de announced today, Motorola plans to release Android 3.1 in July 2011.
Hopefully this release will not delay as the Defy’s 2.2…
New features:
The main new features will be a working sd-card slot. Furthermore, there will be USB-Host support, which will most likely help to attach a digicam to your XOOM and display and download the images. I hope that 3.1 will offer x264 hardware support too.
And the dementi from Motorola:
Motorola Europe Hi Marco, nein, es gibt noch keine Informationen zum 3.1. Update für das Motorola XOOM. Aber sobald es ein genaues Datum für 3.1 gibt, werden wir es hier natürlich posten. Danke.
Source: Motorola Europe @ facebook
Update 2011-06-23:
Here we go…
The 3.1 update for Motorola XOOM™ outside the U.S. has started. Owners in Europe can expect updates over the next several weeks until the roll out is complete. The 3.1 update for non-U.S. devices, in addition to many other improvements, also includes SD card activation. Release notes will be made available in each region, functionality varies by region.
Source: Motorola Europe @ facebook