Stumbled on this info today from what seems to be a profile of a Tek Engr from that business-oriented social networking website:
"Define detail specification of Tek USB scope based on customer requirement and Tektronix technical advantages"Are we expecting a Picoscope contender from Tek soon? I do hope so!

I'm not aware they have any USB scope offerings so far...I've been actually contemplating to sell off my DPO2024B for a Picoscope* lately so knowing a Tek USB scope is coming in the horizon, I might wait for it a bit more to see what they have to offer. Makes me wonder if the other big names are working on something as well.
* I've used Picoscope at work and although it has it's shortcomings against a "real" bench scope (yes, lack of knobs!), I could set those shortcomings aside for the convenience of having the scope interface right in your desktop. It takes a little getting used to but I find it a worthwhile once you get familiarized with it.