Swiss International have announced an increase in frequency of "their" flights to Basel from the end of March. Except it isn't! "Their" Mon-Wed-Friday service will now be operated all 5 days by BMI in a code share, and about 4 hours earlier than the current schedule which will make the return flight very difficult for anyone already booked into hotels in the mountains! The current Saturday flights will still be operated by Swiss, slightly earlier.
added 28/1/11 - I've just checked some prices and it seems they are noticeably cheaper on the Swiss site than on BMIs for the same flights, especially on the Saturday flight.