5 minutes was enough for me with the N800. Enough for me to get a RMA and box it up to be shipped back. That thing is absolutely useless. It's just a PDA.

N800 is NOT a Phone. N800 is NOT a PDA. N800 is an internet tablet and a decent eBook reader (if you download additional software). You can make it anything else depending on what you want it to be (but no, you can't make omlette on it) . It takes about a week to configure and install the software and add-ons available and to customize it to your liking. I wasn't impressed with N800 in the first 24 hours but when I took the time and information available at internettablettalk forum, I have been hooked. I use it for about 2-4 hours a day.
N810 has better look and feel and with the power of open source behind it, it is only getting better. If you think it is missing something, you can probably find it in the desktop Linux version and port it to N800/N810. N810 is getting closer to being a real consumer device but it might take another iteration for it to be loved by soccermoms since Nokia doesn't put enough manpower behind its software UI and is left for open source hobbyists to improve it.

I think Nokia's problem has been articulating simply, and clearly the N8x0's mass-market appeal. That people keep asking why it doesn't have a cell radio proves this. Nokia can say over and over again that it's an internet tablet and it won't sink in any better than it has before. Internet tablet is not a term which has really entered the public consciousness. Right now, people associate portable internet access with smartphones and, oddly, portable media players.

Nokia has devices which can do anything an iPod touch can do and more, with a larger, higher resolution screen to boot. However, whereas Apple is able to articulate why an iPod touch is a compelling product, Nokia just throws a grab bag of features at you. (Part of this is that although iPod touch doesn't do as much, it does do what it does more elegantly.) I haven't seen an N810 in person so I don't know if it's ready for primetime. But I think they need their killer app to drive sales, then for people to realize all the other things it does well. Maybe the killer app will be GPS.

N810 has the following that iPod Touch doesn't:
- Keyboard
- GPS
- Bluetooth (including pairing option to use your bluetooth cellphone as a data modem on the go)
- Bright 800x480 screen (iPod touch has only 480x320)
- FM Transmitter
- Camera
- Flash 9 and FULL youtube website access
- User replaceable battery
- Stand
- Stylus for writing/sketching
- Soon to be avilable: tons of FREE add-on software from open source community including VOIP, multi-protocol IM's and chatting, inking (notes in own handwriting) software, better eBook and PDF readers, Remote Desktop, satellite maps/routes download, etc.
- Linux