'Angry Birds' maker Rovio plans IPO to boost growth

The maker of hit mobile phone game "Angry Birds" is planning an initial public offering to raise ^30 million ($36 million) and potentially use its shares to make acquisitions. Finland's Rovio Entertainment said on Tuesday that existing shareholders, which include the uncle of the company's co-founder as well as venture capital firms A cc el Partners and A to mi co, would also sell some shares, though it gave no details. It declined too to put an estimated value on the company, which some traders have said could be a high as $2billion.