Common Charger/Alternate Solution for iPad (new), Macbook Retina, iPhone5
While an iPad typically charges very slowly on a regular USB port, you could still use your MacBook Pro's USB ports to charge your devices. You definitely can charge your iPhone using your computer's USB port.

There also exists an accessory to "plug" a 10W USB port onto your MacBook Pro power adapter called PlugBug. This should be fine for charging your iPad.