Testing DoCoMo's microscopic premini phone

Nikkei BP has up a review (in Japanese, but with photos) of DoCoMo's premini, aka the Sony Ericsson SO213, which with a footprint significantly smaller than a standard business card is very possibly the world's smallest cellphone. Surprisingly, the physical interface doesn't suffer from the pint-sized form factor as much as you'd expect, and if you have small hands it's possible to punch in mail messages at pretty much the same speed as a normal cellphone. The upshot, they say, is that you're likely to find it hard to go back to your bigger cellphone once you get used to this one. If you're outside Japan, unfortunately, all you can do is make up your own cutout version of it and pretend to talk into that. Or we may have just hit on an idea for the ultimate Bluetooth mod—turn a premini into a remote handset with number display. Go on, we know you can do it.