FWIW IB released a mobile TWS for iPad. Not the other iPhone version previously used. It's decent. certainly more capable than the iPhone version. Just not as readable for aging eyes. I haven't had a chance to use it to trade yet.
Way better than than the iphone app that had to be sized up 2x image and left with a blurry image. Nice app looks good. . If they could do something with the charts it would improve the app greatly. Ability to select bar or candle and open chart to fit iPad.