Some are celebrating that any kind of agreement was reached in Bali. Tom Goreau, a marine scientist and member of the delegation for Jamaica who helped draft the first Framework Convention on Climate Change, is not among them. His comment is here.
[An error in transcription: the EU proposal is to allow (sic) temperature to rise by no more than 2 C (not 3). In Tom Goreau's view, however, this is still insufficiently ambitious.]
P.S. 16 Dec: A version of Tom Goreau's piece has now been published on Dot Earth, along with comments from Timmons Roberts (a co-author of a useful recent paper on the fate of the Amazon, among other things) and several others.