Sometimes I really wonder what you people talk about. I went to see a friend this weekend whose desktop PC is actually less responsive than my 770... It's a Pentium MMX with 120MB RAM and a hard drive that makes you jump to the next room when in spins up. My fathers PC is not much faster - a bit faster than my 770, but it might not beat an N800.

You should accept the fact that people don't always upgrade their hardware to the latest model available. Some just keep it as long as it works. The average PC, the average laptop in use today might be faster than an internet tablet, but maybe not a lot faster.
So if you say that a 770/N800 is too slow for site A or application B, then the truth is that site A and application B, in fact, cannot be used by a large number of "normal" PC users, either. So blame the site and the application for being too heavy, not the device.