Tested: WORKING WITH PROBLEMS
Model: WL-500gd
Firmware: Oleg's 1.9.2.7-6a

Device:
Brandname: Trust
Brandtype: SoundForce 2010
USB Interface: 1.1 compliant
URL To manufacturer: http://www.trust.com
URL To product: http://www.trust.com/products/product.aspx?artnr=14188

The device is supported by the kernel, but i get annoying glitches or gaps during playback. See post http://wl500g.info/showthread.php?t=3388.
Not recommended.