Market analysts see this as a tactical move to add pace the voice-enabled applications. IBM already has a huge investment in the open source scenario with eclipse IDE being one its better known babies. The eclipse consortium has already put together a Voice tools project draft.
This would be the second time IBM has done something like this. The first time it was eclipse, which today has taken the shape of a huge foundation consisting of some of the most prestigious names in the industry. On the second count, the NY Times reports that IBM is out to donate a part of its speech recognition software to open source (see IBM Press Release).