Hanvon USB Artmaster 0806 tablet is supported in Linux now
While Wacom tablets seem to be ruling the world, there still is quite a bit of market for oher vendors.
Ondra Havel released the first public version of a driver for Hanvon USB Artmaster 0806 tablet today.
You can fetch the source code at this page. After running 'make' use 'insmod hantek.ko' to load the driver. The device should be immediately available after that. Hopefully the driver will be accepted to upstream Linux kernel soon enough.