I havea GWS TM400 and it seems to be able to handle some wind - maybe 5-8 knots at best. But then again I think it depends on skill level, at maybe 8 knots it moves around a lot and definately needs lots of power on - no slow flying. The stronger wind is also problematic for landing - due to the ground turbulance. My previous pod'n'boom would take on any wind as long as the motor was powerful enough to keep it moving forwards (solved by getting a larger battery, the only problem was turning sharply caused the thin foam wing to crumple or fold next to the reinforcing rod.....but made for some spectacular crashes though!
What about slope gliders - they need wind - maybe what you're looking for?