Yes, it is plug&play, but only if recognizable by the kernel drivers. For instance i bought a Chinese bluetooth dongle for $7, which generated a whole ton of kernel messages (thus affecting system stability). After patching the kernel sources and module recompile, that problem was gone (still much more than i achieved in Windows and the BlueSoleil big steaming pile). More established brands like Belkin are a no-brainer though.

BTW, Eee which kernel version uses? Would be good if it is a fresh one.