i got this phone 2 weeks ago as well...
quick tips...
first thing, make task manager a shortcut, its the most useful app.
holding down the end key locks the phone.
holding down talk activates speakerphone
make sure to get a miniSD card, regular cards are too big.
one con i've heard is that you have a bluetooth headset, you can't listen to mp3s thru it, havent tried it so i can't confirm.
take advantage of windows media player 10...with a miniSD, you can store tv shows, movies...etc....
have fun.