Well, I own both. Your statement is not very informative, but I respect your opinion. However, there are two important dimensions (ignoring the keyboard) that the Mylo totally dominates the 770/800:

1. Battery life. You can listen to mp3's for 45 hours - yes, 45 hours. And, you get album art, info on albums, artists, etc. just like any good mp3 player (it plays mp3's, wma's, atrac). You can watch video for 7-8 hours. You can surf the web for 7-8 hours. (Yes, I have expereienced these times.) Total domination. I hate worrying about the battery going dead. This is the one device for which I feel relaxed about using it away from ac.

2. Videos. Although the Mylo only accepts one codec, it's quality is high: about 700 kbps at 320x240. It plays 30 fps easily in stereo - no jumps, skips. Colors are great, picture is sharp. And, did I say you can watch videos for 7-8 hours? The 770/800's are really, really bad at playing videos (right now). They cannot even play the included demo video well - cannot keep up with the frame rate (on the included player).

The 770/800 has lots and lots of advantages over the Mylo (program add-ons, flash!) so on net if one had to choose it is perfectly reasonable to want the Nokia. This will be more so when Skype is enabled (it is ready to go on the Mylo). But when I am on a long airplane flight and want to listen to my music with good sound or watch my videos, or want a compact voice over ip phone, the Mylo is it.