The Wii U is compatible with existing Wii accessories.
It will be compatible with existing smartphones, tablets and computers.
Not clear if compatible with existing automatic payment and vending machines.
It is fully binary compatible with existing Objective-C libraries and maintains a close relationship with the Cocoa frameworks.
If they do, will they be compatible with existing Canon and Nikon lenses?
Consumer-electronics devices, unlike desktop PCs, do not have to be compatible with existing software.
The system is not compatible with existing Level III fast chargers.
Biojet is a so-called drop-in fuel that is compatible with existing engines and infrastructure, and it recycles carbon rather than emitting "new" fossil carbon.
Sony, Yamaha, Ricoh, Hewlett-Packard, Philips, RCA and Mitsubishi are backing DVD+RW, which they say is more compatible with existing DVD players than Panasonic's DVD-RAM format.
That means that even with the adapter, the iPhone 5 would not fully cooperate with in-dash systems that are compatible with existing iPhones.
