get an iiPad2 or an Android pad with HDMI out.
i have a slingcatcher and an eeePad and if the android pad had been out when i bought the slingcatcher, no contest. I've also docked my moto photon to a tv and slinged onto flatscreen via hdmi as well. if the photon mm dock remote could control slingplayer. that would be great.
i think sling killed the catcher when they realized pads would just kill the space.