I have used Gmail and Google Reader with my N800 regularly since the last OS07 firmware update and can report that they both work quite well without the need for a keyboard. These are 'must have' apps (gmail obviously for me and my use of them (for me anyway) is an affirmation of the whole 'internet' part of the tablet experience. I am one of the few not clamoring for a better email app simply because I find using gmail so easy. I am one of those users who is happy to leave all my email on google's server where I can find it wherever I am and whatever device I'm using.

As for the reader, it's much the same for the local rss reader. I don't use the local app because I can get all my feeds on the net with quick links to the stories because I'm already running the browser.

I've had the privilege of being able to get an N810 as well, and can tell you it works even better on the OS08 software. This is not the same, tho, as running the OS08 on the N800, which I've not done. Since there are so many solid apps for the OS07, I'm keeping that on my N800 for now