> I'm pretty sure AirDrop needs either a WiFi or Cellular connection, as the article states, this needs neither.

No, AirDrop does not require wifi or cellular. It uses Bluetooth LTE to scan for nearby phones and then establishes an ad-hoc wifi connection.

You can't use it if you have wifi turned off (or airport mode turned on), but it works whether you're connected to a network or not.

> Also, AirDrop doesn't share with Android and Windows Phones.

And as of November 19 2013, this does not either.

AirDrop does do what they are describing. Airdrop uses ad hoc wifi to enable iOS devices to communicate with each other without a router or some other networking device in the middle.

But it is not cross platform, obviously.