It's Thursday, so it's time again for another update on what's new on the PlayStation Store. Sony's offering a nice deal on some PSN-only games this week, with seven different PSN titles getting half off the price until next week's update. The usual round of add-ons also make an appearance, most notably the Ghostbusters costumes for LittleBigPlanet. PSP owners, on the other hand, get a trio of downloadable games and some add-ons for Rock Band: Unplugged.

Yesterday's European PlayStation Store update had no Echochrome demo again. So North American PlayStation Store users should consider themselves lucky to get it this week. The Echochrome demo and the Call of Duty 4: Modern Warfare Variety Map Pack headline this week's PS Store updates. For the complete list, head over the full article.