How to copy contacts from Nokia N900 to Windows Phone

To copy contacts from Nokia N900 to Windows Phone 7 follow the steps:

1) Export contacts as vcards on N900

2) Copy a folder with exported vcards to your computer

3) Merge all the vicards to one file; on Windows, run in a console:

C:\Users\user1\Desktop\Exported contacts>for %a in (*.vcf) do cat newline.txt >>%a

copy /B *.vcf merged_contacts.vcf

4) Import the merged file on gmail, as contacts

5) Configure your gmail account on a Windows Phone to copy imported contacts

Re-installing Ubuntu on an encrypted LVM without overwriting existing home partition

John Wiersba wrote a very good HOWTO about installing and re-installing Ubuntu on an encrypted LVM without overwriting existing home partition:

http://ubuntuforums.org/archive/index.php/t-1205372.html

Android game development - libgdx

Couple of weeks ago I did a quick research about writing games for Android and I found libgdx. I encourage everyone writing games for Android to take a look on it. It is really great! You can run the same code as a desktop application or as Android app (I haven't try it on the device yet). It covers bunch of useful APIs, including for example box2d wrapper, audio, graphics, json, etc.

Acer Aspire and Ubuntu 11.04 Issues

I've just updated Ubuntu 10.04 to 10.10 and then 11.04. I faced several issues. I didn't have time to work on them more, so I can present only quick, dirty workarounds without much explanation:

1) There was a blank screen when I tried to run Ubuntu after the upgrade

I had to run it in the safe mode (something like that - don't remember exactly the name) and enable different graphics driver.

2) When I start the laptop it always first shows just a blank screen and hangs, after I restart it again it works

3) WiFi stopped working

The interface is blocked. rfkill doesn't help. The quickest workaround is to execute the following command:

sudo rmmod acer_wmi

4) Touchpad is not working