Comment Luis Villa's thoughtful response (Score 4, Informative) 232
Is also worth reading.
Basically, while this is not a hands down win for opponents of software (or business method) patents, the upholding of the older cases (Flook, Diehr, etc.) could give some guidance on future cases that may help them rule out abstract ideas and algorithms. Villa also talks a bit about how the lower courts may see this and how he thinks they may be handling future patent cases.