Ok, I just went to the technical data on Energizer's website and got the data sheets of the three AA cell types they manufacture:
briefcase.yahoo.com/aacelldata
In my opinion, there is no difference between the standard and the titanium data sheets, as they used the same graphs for inner resistance, etc. So there it is possible that despite of the new label you wont get a really improved cell.
What I can really recommend is their Lithium AA. I made some tests a haf year ago comparing them against alkaline cells from Energizer and Duracell at high currents and it was by far the winner. If you have any application, which draws 700+ mA from a cell, these cells are definitely superior.
These titanium cells are not yet available in Germany, but when they are, I will test them.
Bye,
phantomas2002