Nokia To Sony Ericsson

From Nokia 3210, Nokia 3530, Nokia 3660, I now upgraded (in someway) to Sony Ericsson P910i. This Mobile Phone – PDA hybrid existed before 3G phones (though I really want a Nokia N70/N91). I feel inlove with this phone because of its functionality, giving full control to tasks at hand. Its bulky from the inside out, meaning though its bulky looking outside, inside its full pack with programs thats most needed by businessmen (not me) or busy people (thats me). It helps me organize schedules and tasks that I cannot do with my Nokia 3660. Also I can install programs that I really need not like my old phone that has 4-6mb of internal memory giving limited space for programs. In SE P910i, I dont have to worry about space because it has 64mb of internal memory and I can put in 1gb of external memory (Memory Stick DUO pro). Also unlike my N3660 I can now personalize the look of my mobile phone, thats because P910i supports themes! Yes like Windows this mobile phone can change its looks by just selecting a theme. It supports MP3 files (unlike my N3660 which I need to install first a program to be able to play mp3 file) and much more.
Im a tech geek but due to limitations, I dont have much privilege to have new tech stuffs (Im eyeing for the SE P990 which has lots of juicy stuff). This phone is my mobile phoen and my mini computer, and I wont have a problem travelling and worrying about stuffs I usually think when I away from my home PC.