Today is the last day we’ll be accepting entries for our Quad Speaker Giveaway, so if you haven’t yet entered, now’s your chance. In the giveaway, Altec Lansing and iLounge are giving away four sets of Altec Lansing speakers (two Altec Lansing T612 Powered Audio Systems and two inMotion iM600 Portable Audio Systems) to four lucky readers. To enter, just fill out the simple form on the entry page. The contest runs until midnight Pacific…