I had this same phone, in the post iPhone era we tend to forget that smartphones did exist and some of them were actually pretty fantastic devices. From the 600 I upgraded to the 700w and that was probably my favorite phone of all time.
- I watched most of the world cup 2006 games live streamed over 3G. -I used to frequently use google maps which without GPS would use cell towers triangulate my position within a couple hundred meter radius. - Used it as a wireless AP -And even uploaded videos to youtube.
When i first heard of the iPhone i wasn't that impressed as i already been using what i considered a smartphone. Obviously i that's all changed now! ;)
iPhone really fixed that one thing but at the time I was outraged (outraged!) that to get that smooth UI performance I'd have to give up 3rd party apps, 3G, MMS, GPS, (shitty by today's standards) video calling, copy/paste, task switching, and even the ability to change my wallpaper or ringtone!
Kind of amusing today with the relative parity between mobile OSes and the abundance of models to choose from but at the time I just remember being so frustrated with how no single company seemed capable of putting everything into one device. Still, those Treos and PPCs laid the groundwork for the insanely capable and useable devices many of us carry in our pockets today.
i remember it had outlook integration which was especially awesome because my employer at the time used outlook and i was able to leave my work-from-home post during the day to have lunch or drinks with friends in san francisco and not be out of touch.
even though this was barely ten years ago, now i feel really old.
I think my experience with that phone is the reason I'm in love with the Samsung Galaxy Note series now.