Go to the launcher click the launcher drop down in the top left corner and select list apps. Tap on the app you want to delete.
There are paid version for most of the software in the android market. On the Palm Pre there will be versions availabe once paid apps are allowed. If you have a specific ad you want removed, if you sent me a screen shot I will consider it. The general standard is that if an ad would play on tv, I am not going to filter it. I do ban blinking ads as I come across them.
It is currently being investigated.
The computer player is constantly being refined. If you have a specific example that you want to investigate please send me as much info as you can. Thank you.