Plenty of us know the frustrations of not having a numpad (numeric keypad) on most notebooks. This is particular true on those MacBook and MacBook Pros (I wouldn’t know about that, I use a big-ol ACER).  Balmuda has released an application recently that will transform your iPhone into a numpad. Your computer will connect to your iPhone via wifi and virtually turn your iPhone into a fully functioning keypad. I have yet to use it, and most likely won’t any time soon being that it’s only available for Mac at the moment. Though it’s only for Mac, there’s no denying how useful something like this may be for those who rely heavily on the use of a simple numpad. At $1.99, it won’t break the bank and offers a ton of extra functionality.