There is, however, the slight problem of the Lumia 920 not yet shipping: unless you've been blessed with a prototype of the Windows Phone 8 device, Apple and Google are the only ones that have their latest navigation software on a phone you can actually buy.

ENGADGET: Nokia stacks up its maps next to Apple's and Google's, politely suggests it comes out on top (update: more detail)

Once online, the funnel-shaped device stores and automatically syncs files with the Transporters of invited friends and groups -- and only their Transporters.

ENGADGET: Insert Coin: Transporter, the collaborative, internet connected, peer-to-peer storage hub (video)