Is the 'bonus' program of 5+5 FF miles per dollar only temporary. The following note from the website indicates it will continue through 2007 IF you get 12 dines this year, but why do they show it as a 5 point 'bonus' instead of making it just 10?

Elite Status* - Earn 10 miles per dollar spent.

Dine 12 or more times at participating restaurants within a calendar year and you'll reach Elite status which qualifies you for:

5 miles per dollar spent on the total bill at participating restaurants
An additional 5 bonus miles per dollar spent with the Elite Member Bonus valid through 12/31/07 ... for a total of 10 Mileage Plus miles for every dollar you spend**
Access to the greatest number of participating restaurants
Elite Member bonus mile opportunities
PLEASE NOTE: Members who had achieved this status as of 12/31/05 will maintain their Elite status throughout 2006. To qualify for Elite status in 2007, you must have 12 or more qualified dines at participating restaurants in 2006