The elusive Nexus 4 wireless charging orb — one of the most striking features of Google's Android flagship — is finally on sale through Google Play, a few months after the phone's launch. It's currently selling for $59.99 in the US, with shipping times quoted as around a week; we're not yet sure of overall international availability. The Nexus 4 itself has only recently come back in stock on the Play Store, after Google apparently massively underestimated initial demand, so this is fairly good timing. We've also seen longer delays on some other Google accessories, like the Nexus 7's dock. The Nexus 4 orb recalls the now-discontinued Palm Touchstone, and Nokia's Lumia 920 has also incorporated wireless charging based on the Qi standard.