I bought a Roku 2XS around a month ago. It's just been replaced by a new $100 Roku 3 that is:
over 5 times faster (so maybe they'll finally be able to support a YouTube channel in the Channel Store)
dual-band WiFi support (5GHz presumably)
features a new UI that my old one can get in a month or so
has a headphone jack on the remote
More info buried throughout this page.
Only the first and second items bother me. As much as I've been preferring the Roku experience to my now-neglected AppleTV, unlike Apple, I doubt Roku is going to replace my 2XS if I complain. Fry's definitely doesn't care.
The centerpiece of this update is the revised UI, which is much cleaner and indexes search universally, across all of your channel subscriptions. Search for a title or an actor or a director, and it spits out all of your viewing options.
Bye, "where/how can I watch it?" services. Unified search is a feature, not a platform.