Sony's Mylo (My Life Online) seems to be a cross-over between a Danger's Sidekick and a PSP. It's basically a new handheld device that has interesting capabilities as reported by BBC:

The pocked-sized gadget, called the mylo, will sell for about $350, according to the Associated Press. It has a small display and keyboard and is pitched at the young, mainstream market who use IM and are interested in making net telephone calls. Sony has formed a partnership with Skype for net phone calls and with Yahoo and Google for instant messaging. The mylo, which stands for "my life online", will only be available in the United States.

The so-called personal communicator doubles as a portable media player. It can play music, and screen photos and videos that are stored on its internal one gigabyte of flash memory or optional Memory Stick cards.

What about the PSP and Mylo? BBC's comment about that is also true:

It too has wi-fi, can play music and video, display photos and is technically capable of supporting instant messaging and internet telephone calls. But the wi-fi functionality has yet to be taken advantage of by the company. It is not clear if the mylo will be a rival to, or complementary to, the PSP.

Why do I blog this? yet another handheld, nice design, time will tell. With this sort of device (Swisscom release a sort-of similar product), I am always wondering about pricing, especially regarding IM but in this case; but if it can take advantage of Wifi, that might be easier (the next step is to find a free hotspot).