According to the Verge the HP webOS team is now smaller-- the team working on Enyo (the webOS HTML5-based application framework) just left the company in favour of working with Google.
Apparently the Enyo engineering core (6 people in all, including project lead Matt McNulty) are to start working at Google from next month. What will they do? No one knows as yet, although one can easily assume the ex-HP group will join the Android team.
After all, current Android design chief Matias Duarte is ex-Palm-- he worked on webOS until HP bought Palm back in 2010.
The Chrome (either web browser or OS) team is also an option, seeing how Google invests heavily in HTML5 apps and development.
What will happen to the now open source webOS? An HP statement simply says "the Open webOS project is on schedule and we remain committed to the roadmap announced in January."