I have the droid its rooted (jail broken), it has a mifi app. It will wireless teather from at least 30 feet away maybe further. Works great with the iPad. I have used two laptops and iPad at the same time with it. I like how I'm already paying the 30 a month for the smart phone plan anyway, so it's really like free mifi.
Just done a speedtest, it got 9.45 mbps download on broadband, 1.43 mbps down on mifi. I done a test on the droid and it got .86 mbps down on it's on 3g. So the pad is does great on the mifi.