Skipping the question of whether the Internet Tablets have seen "significant" sales as we don't know the sales numbers or targets, we've been told since September that Nokia will soon position Maemo devices at the top of their product line, pushing S60 devices down to mid-level. The continued, and even increased, hiring for Maemo during a recession that has forced Nokia to cut jobs in other areas only reinforces the importance of the platform to the company. This is further bolstered by signs that Nokia is preparing to have at least two Maemo 5 devices on the market simultaneously, presumably targeting different market segments.

You may have judged Maemo's success prematurely.