Yesterday, I removed my SIM card from my Galaxy S. And then I turned it on. So that, I can use it as a wifi device only. After I did some tasks, I plugged back the SIM card into the phone. Then I had a problem. The user data are gone! I did debug on my phone. I found SQLite database are gone!!!!! As a result, I have to uninstall apps and install them again! This is the only way to make those apps work again! So poor. So, please re-think before you remove your sim card from Galaxy S. That may be a problem which is unique in my phone, but you should be still cautious about that!
I found there is a program ,Androidify, to create you own android character. This is very fun! You can make the character tall or short, fat or slim by using your fingers. Moreover, you choose the clothes, shoes ,hair style and skin tone too! That is very interesting. Lastly, you can post your character to facebook!
I got some free time to play Android 3.0 today. That is an Android for "tablet"! The default screen size is WXGA (1280×768). That is tablet. Anyway, the interface is much cleaner. Moreover, I found the browser is different. Now, that 100% looks like a Desktop Chrome. One last things I picked up, that emulator is much slower than the older version!
Last week, Google is released the Android 3.0 Preview. They said this version has improved UI Components for larger devices. Therefore, this version is Tablet PC. That is great. This current version Android is for smart phone only. That is strange to use this in 7" tablet.
Moreover, it got their 2D and 3D graphic rendering. That sounds in response to Tablet PC as well. Tablet PC can have better CPU and graphic card! Lastly, the feature I love most is Google eBook! You can access via an Android tablet to Google eBook. That is very hard to say how's great in text. Please watch their Android 3.0 video!
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Please read the blog post from Google about Android. That is very hard to say in details, because they got too many changes in their version.