Review: HTC Surround with Windows Phone 7
What's interesting about the 16GB of available memory is that only 8GB's are built into the phone. The other 8GB's are in a removable microSD card.
The problem here is that the phone views the microSD card as built-in memory. What that means for you is the "expandable" memory is only to be removed if you want to format the card and lose everything. The only way to transfer media files from phone to computer is with a data cable (the phonescoop review mentions how painful syncing can be, especially with video). It definitely feels like a design flaw, especially when I can get a Samsung Captivate with 16GB and get an expandable memory card with 32GB. Just like the Aria, HTC comes out with a half-baked phone for AT&T and gives other providers the cream and cookies. Why? Why bring a phone all the way through development if it doesn't work well as a phone, and it you can't actually use the expandable memory to its full capacity.
Way to go, guys.