Well, I tried all of those too !!!!

I like it for internet radio, but when I'm sitting, I'm usually at my computer, and that plays better without draining the battery... the same about MP3s.

I find the screen too small for comfortable reading. For webbrowsing, paradoxically, it is pretty good, but I don't like the available browsers.

No objection here, but I'm using trusty old bc for my needs... this should give a hint about my geekness score

No Exchange support, deal breaker. Embedded app doesn't handle well the thousands of mails in my gmail account.

See comments about the browser. No java and questionable flash are pretty much deal killers. Lack of Firefox add-ins is the final nail in the coffin.

This is good on the go. It could be better if not supported via not-so-nice-plugged-in mplayer, and if it not need time-consuming (my time) converting. Should be able to accept direct dumps, big flash memories are pretty cheap these days.

I'm not into this kind of business, can't comment.

GSM hardware would be much nicer

I'll stop here, and remark that all those experiences you further listed are shaky and require some contortions, and I'm not seeing anybody stepping up to bring them on to consumer level.

I moved away from windows about 8 years ago because I was tired to have to babysit the systems, and I wanted to have something that just works. Weird as it sounds, Linux was such a platform. But NITs are not .