I have both and iPhone 4 and an iPad 2. Is there a wall-wart and/or car charger with dual ports that will charge them both at the same time? I have looked at the radtech.com ones but they dont mention the iPad. Obviously the power draw of them both at the same time from the same power source is somewhat of an issue, but nothing that cant be solved with any sort of "smart" charger. I have been googling and have not come up with anything. has anyone tried the radtech ones with iphone and ipad? if so, how does it work?