A fairly comprehensive comparison is at:

http://www.ultramobilegeek.com/2007/...nux-fight.html

I got the n810 - for being mobile (and I use a Cradlepoint with UM150 for EVDO - see evdoinfo.com for info).

The iGo $30 BT keyboard is a good addition for longer compositions (emails, comments, anything a paragraph or longer).

I got a closeout BT stereo headset (though I use it in the handsfree profile) for listening to internet radio and MP3s when I don't want to use the speakers. All work very well.

The n810 is slower, but far more usable for the common internet stuff. Plus I can run Gnumeric, xterm, xvnc and play linux hacker. It is on all the time, updating the RSS feeds. I didn't do that with my laptop (also had no internal bluetooth which limited audio). There are things like greasemonkey (block flash, free tables) and adblock plus, but not the dozens of extensions I regularly use with firefox. It easily finds and links up with bluetooth devices and wireless access points.

The EEE does have a PC architecture, so things like mplayer can use x86 codec DLLs from windows (they exist for ARM, but no Wine infrastructure for Windows mobile yet), or you can get WMP running under XP if there is media that is windows only. I could plug my EVDO wireless cell network modem into the EEE directly (I can plug it into the n810 as well, but I need to do some kernel hacking on cdc_acm.ko or the USB subsystem before it will work).

In sum, the EEE is a very small notebook, but still a notebook - you will have to add bluetooth, GPS, etc. and it won't fit in your pocket.

The n810 is a PDA/Internet appliance that you can take with you in your pocket, and you can accessorize (if your pockets aren't full) with the keyboard and headsets.

The n810's minimum footprint is MUCH smaller, but you can add things to make it nearly an EEE, but they can remain in your briefcase while the n810 will stay in your pocket.

One final point is that the screen on the n810 is transflective, so it can be read in sunlight, though as a practical matter, the colors fade so this applies more to reading or editing text than images, but I plan on using mine outside, and the only competition I know of are much bigger and more powerful tablet PCs costing over 3x (OQO2, TabletKiosk).