for me the htc touch pro its slow and looks like a brick in way
compared to manila 2d
the 3d has toooo many animations that sometimes lags the phone more
my cousin has the pro and its pretty slow when going landscape and switching between tabs even with a rom installed...
so yeah and with the touch diamond 2 has no keyboard which makes it SLIM
just my opinion and my cousins too lol she has to keep it cuz she got it from sprint