We're not sure why people wouldn't just... you know, use Gmail, but Japan's KDDI is working with Google to roll out a customized version of the ubiquitous email service for subscribers of its au brand. Called "au one mail," a prototype getting passed around last week showed a mobile interface virtually indistinguishable from its Gmail doppelganger -- except, of course, for the KDDI au branding. Like Gmail, au one mail will be accessible from both phones and desktops; we reckon that's a good thing, though we're still not really understanding the value proposition. At any rate, look for it to launch at no charge to subscribers some time next month.

[via mocoNews.net]