AT&T's new Android powered phone, the Motorola Backflip, is more limited than its other Android powered brethren. One of the great things about Android is that it is built off of Linux, and that it is possible to download and install apk files from unofficial sources or unknown sources.
AT&T apparently are not interested in that ability. In my opinion, it seems that they are actually against that ability. The only apps you are supposed to install are the ones you can find on Google's Android Market.
And that's not all. Apparently, users cannot remove the software that comes installed on their phones. Plus, the Google search function is replaced by Yahoo as the default search function. Guess what version of Android the Motorola runs! Figured it out yet? Well, it runs 1.5 with the option to upgrade to 2.1.
XDA-Developers have found out a way to get around the block on non market apps, but I believe this is still not something AT&T were intending to allow.
What does this all add up to? In my opinion, it adds up to a phone that I would not buy if I was in the market for an Android phone.