Snow Leopard says service battery, and for the 3rd time the battery has dissolved into failure in exactly the same way.
Stays high for a month (99%), drops to 8x%, climbs to 9x% and then finally dies...
Now, this would be my fourth (yes 4th!) battery, and the 3rd time the Laptop will have to go into an Apple store, as the power circuitry in here must have something wrong.
So... new MBP time I think
[Applecare for 3 years, 26 months into my 36 month warranty!]