I just got the Nintendo DS Browser. Sadly, Opera's not supported on most the AJAX/Web 2.0 Word Processors (and I got it so that I could poke at work on something very portable).

I searched around a bit, and I found Helicoid makers of web apps who have a focus on putting these apps on mobile devices as well. Their Helipad looks like it'll solve my word processing problems while on the go - just load the document I want to work on up there before I leave...

I'll make sure to post about other stuff that works well on the DS Browser, as I'm sure I'll have more needs (mobile optimized RSS reader maybe?)

And I have (probably) a winner in the mobile optimized RSS reader category: Google Reader Mobile