Not until and unless the situation clarifies itself. It is my understanding that there is still an ongoing debate within Tor and the parent company, and Tor's management -- at the highest level -- are aware of the undesirability of DRM on ebooks (from a sales point of view), but they've now got to convince a whole bunch of other folks of the same thing.

I'd draw your attention, though, to the availability of 60% of this year's Hugo nominated novels -- soon to be 80%, if a certain British editor wasn't on jury service this week and therefore unale to sign off on it -- as un-DRM'd ebooks to eligible Hugo voters as a sign of the way things are going.