Little in the way of other information is available, with The Register reporting that it was promised a statement from the company which has so far failed to materialise.
Purple Software developed a wide range of mobile games, mostly based on traditional favourites such as card games, chess and backgammon. Several large mobile operators were among its customers, including Japanese giant NTT DoCoMo; however, the company has presumably now run out of venture capital money, and mobile gaming revenues remain thin on the ground despite the high expectations for the future of the sector.
Source: Gamesindustry.biz