Here's a Mylo review:

http://laptopmag.com/Review/Sony-Mylo.htm

just as expected: decent UI and features, crappy screen realestate...

One positive thing that may come out of all of this is that if the mylo does get adopted by some set of people (read: gen-y kids), it may solidify the "Internet Tablet" as a legitimate product category in the eyes of the general pubic. Maybe with the addition of the mylo, the Internet Tablet category will generate more interest, and the 770 can get some well deserved advertisement through proxy. A little competition for the 770 may convince Nokia to further develop the 770 and its successor for the mass market.

If the mylo had better screen res, it would have been perfect for me to give to someone like my mom, so she doesn't have to lug a laptop when she goes abroad. Lets face it, the way it stands, the 770 isn't for all users. Thats OK, but Nokia may need to work on a even simpler and friendlier interface, set-up, features, and user experience for the general public.

That said, I'm perfectly happy with what the 770 does, it is exactly the device that I waited for since around 1999, when I decided the palm pilot was a useless piece of junk. It took seven long years for my wish to be fulfilled, but kudos to Nokia for bringing us the 770.