HP early today is making an aggressive push into touchscreen PCs with two key updates to its TouchSmart home all-in-ones. The TouchSmart 300 and 600 add true multi-touch input and have significantly expanded use for the technology: they can not only use pinch-to-zoom, flicks and other gestures in the general operating system thanks to Windows 7 but in several new touch apps for the systems' custom front end. They can now navigate Hulu or Netflix streaming video, stream Pandora or Rhapsody music, or update and follow Twitter feeds all primarily using touch.
