SE-NSE Forums:

Remember that mysterious under-construction site that went online a few days ago? Well, now we know what it’s for. But first, a link to the actual site:
http://www.sonyericsson.com/mine/

Apparenly, using the site, you can create style-up covers for your W508 and naturally buy the finished product afterwards. Pretty neat, huh? But there’s more! There’s a competition that awards the best designs with some pretty neat prizes (i.e. a PS3, a pair of wireless speakers, a W508), the winners of which are determined by popular vote. So even if you don’t own a W508, it’s worth it to take part. Hit the source link for pictures.

Source: Fanklub.se

[Thanks, rune and TmZ!]