Well, I have successfully created the shortcuts to the iPhone and iPod touch User Agents, and another to switch back to default, all as per the helpful directions given in the above posts.
Depending on which UA I use, and which site I view, things have improved.....but I still can't get into gmail at all. I have tried various URL's, different UA's, still impossible.
Any clues?? I reiterate, I can get into gmail using the same url as on the n810, but on my laptop on the same network.