here is my 2 cents. im comming from a touch diamond so im feeling great!
pros: -battery life. when the old diamond battery dies, the tp2 has 40% at the top right corner. battery life was always a problem for me with the diamond. nomore with the tp2
-screen size. the wvga screen is a beautiful thing indeed, the diamond was awesome also but this a case of bigger is sooo much better.
-keyboard. didnt have one before, didnt think i needed one. man was i wrong. i have tried the tp1 but tp2 has good feel decent space between keys. I made my coworkers jaw drop when just slided the keyboard out(no need to press the standby button) press fn right arrow and opera instantly opens up.
-3.5 audio jack. some say useless, for me its a nail on the iphone coffin. not to say the tp2 will kill the iphone, but this phone clearly was made to one up the iphone in just about every hardware feature.
-wow factor. when you take the tp2 out and slide the keyboard out, people will notice. of course i get the is it an iphone? question almost everytime. i respond with this is my computer, gps, wifi-router, camera, tv, radio, flashlight, leveller, videogame console
ok the cons:
-weight. the diamond feels 3times lighter. probably is... the tp2 is a brick. it should be expected because of the bigger everything, im still getting used to it.
-hardware buttons. dude where is my d-pad? i miss it. again looking at the new of htc phones... the dpad is going the way of the dinosaur. another thing to get used to.
-updated tf3d. change is always hard at first, tp2 tf3d is not extactly the same as on the diamond. took a while to figure out how to get to the all setting. htc did a good job trying to make wm6.1 invisible. been a week and only know finally settling in.
conclusion: tp2 is a must have for professinals who need to stand out from the rest. sure i can get everything done on a dated htc touch vogue but on the tp2 you are in another class. you truly feel like you got the best there is available on the market is your hands. nothing and no one is out of reach with device. the design is without doubt geared for people like myself in mind. good battery, solid keyboard, loaded with business, multimedia and connectivity tools and crisp bright screen at 800x480 res and 3.6". there are some bad aspects like the weight and thickness but when compared to the good... you dont care.