Here's another design I own and use:

Dancing Light Gear Tarptent

20 oz including all lines and stuff sack - also has bug netting. Same basic idea of using a trekking pole for support. I've used it throughout the fall and am about to try it on a winter camping trip (combined with a bivy sack).

Also, the Henry Shires Tarptent is a nice product with a good reputation.

I've backpacked with others who've used the Tarptent Squall and Golite Den and Cave, and we've all been happy with our choices. Each offers a slightly different feature set, and I don't think you'd go wrong with any of these.

- Steve