The company appears to have the financial wherewithal to last for quite a while as it attempts a turn-around.[1] So I expect them to continue trying with the existing business model for at least a few more quarters before they give up and join the Android bandwagon or sell their soul to Microsoft like Nokia.
[1] The latest financial statements at http://press.rim.com/content/dam/rim/press/PDF/Financial/FY2... show that the company ended the quarter with close to $1,467 million in cold hard cash and $780 million in investments, and no debt (page 8). Moreover, all of the reported loss came from non-cash accounting write-offs and accelerated amortization; the company's combined cash and investments actually increased during the quarter, from $2,111 million to $2,247 million (page 9) -- that's right: they ended the quarter with more money than they started!