I've been considering this issue for some time now. I've added an external antenna to my Flytouch. I get a little better wifi range now. I'm looking into replacing the the Ralink wifi card. The problem I'm having with swapping out the wifi card is installing a new driver. I'm very new to the world of Android and that process is beyond my skill level. I've also tried to back into a solution by trying to find other Ralink wifi cards that can use the same driver. The chip I believe is an rt2070, when I look for a driver for that chip, the file name references rt2870 or rt3070. I've found a couple on Amazon with very cheap prices $10 to $30. If I find something that works well, I'll report back.