The Sony X10 showing off a new feature that will allow users to find content online based on the pictures they they take.  Similar to the barcode detection feature but taking it up a couple notches up to allow not only pricing but direct links to sites (purchase info, wiki, official site, etc).  Besides that the phone looks to be running flawless without any lag or hiccups.

More info about the technology:

http://www.google.com/mobile/goggles/#landmark