I've only tried it with the device listed in the first post but it should work with any of the IP to IR devices that Global Cache sells. The flex is just a smaller version, easier to hide. It should also work with the wireless to IR, as long as they are on the same network, it'll send the code.
Great thing about Amazon is the return policy...make sure you pick a vendor that will take it back, no questions asked (most will). That way if you do have any problems, just send it back.
If you do try it, please let us know that it works and I'll add it to the post.