HP showed off the mini-Q 2020 and mini-Q 2030 nettops in Taiwan, you can check out a bunch of photos at this forum.
The cheap mini-Q systems use the Compaq brand, they are pretty small and will weigh between 1.5kg and 2kg.
The Compaq mini-Q 2030 features Windows Vista, a dual-core Intel Atom 330 1.6GHz processor, 2GB DDR2 memory and 160GB 7200RPM HDD. The Compaq mini-Q 2020 is equipped with Windows XP, this model has a single-core Atom 230 1.6GHz processor, 1GB DDR2 memory and the same 160GB HDD. Both systems feature four USB 2.0 ports, VGA-output, audio connectors, two PS/2 ports, Ethernet, memory card reader and a DVD burner.