DualMiner will have limited stock available next week and higher volumes available in March. I'll try to get my hands on some next week; otherwise it may not be until March :/
Looks like it won't be happening until March at this point.
Keep us posted!
Right now I'm making arrangements to order a batch of the 5-chip miners as there seems to be a larger demand for those and I felt like I had to do something while waiting on DualMiner, but unfortunately I simply don't have the capital to also buy a batch of DualMiner USBs. It's also an issue of my time between selling stuff here, on eBay, and working a full time job.
But next time I'm going to have a website set up to handle orders which should hopefully result in faster order processing and maybe better (i.e., calculated based on actual cost) shipping rates for everyone.