I noticed that Dell announced what looks like their version of the T and TF models, the Venue 10, or Venue 10 pro; one has Windows, one has Android.

Dell has a new Chromebook and a tablet that runs your choice of OS

there's a keyboard dock which has an intereresting feature in that it's reversible, you can dock the tablet either way round

there's a an option for a Wacom pen, and 3G/LTE data module.

since Asus haven't put the TF303CL on sale in the UK, then it looks like I might be buying a Dell Transformer Pad, er, Venue 10. That's assuming the specs don't turn out to be lame once fully revealed!