Targus Dock station usb 3.0

I just got a XPS 13 (bought with win8 since I'm in France) and I'm interested in the dock station offered by dell (1) but I'm not sure if it is fully sputnik compatible.

Does any know if all the ports are working? (video outputs seem to be a problem (2)) If it is not supported yet, is the sputnik team planning on trying to fix that?

Finally, is there an easy way to check which of the accessories offered on Dell website would work on ubuntu?

Thanks

(1) http://accessories.us.dell.com/sna/productdetail.aspx?c=us&l=en&s=dhs&cs=19&sku=A5576955&~ck=baynoteSearch&baynote_bnrank=3&baynote_irrank=0

(2) http://www.displaylink.org/forum/showthread.php?p=8499