What was just a footnote to 2007 has finally come to fruition. Sony Ericsson just went live with details on the August 25th launch of its PlayNow Arena media download site. Initially the site will offer 1 million, DRM-free songs (ramping up to 5 million) from Sony BMG, Warner Music, and EMI. It will also offer games, ringtones, applications, and themes for your mobile downloading pleasures. Other European countries will come on board later this year before it goes global in 2009. Tracks are expected to be “on par” with Apple’s iTunes ($0.99 / €0.99) pricing but will cost SEK9 (about $1.43, credit card required) for the Nordic launch. Full press release after the break.