I agree. I do contract iOS and Android development and started ramping on Playbook in December using Adobe Air. Now, I think I'll just wait until Android support is available.
I think support for BlackBerry Java was added to protect the investments of existing business customers with in-house BlackBerry apps, with the goal of preventing them from adopting the iPad and Android tablets. I doubt consumer app developers will use BlackBerry Java (which I've read is more difficult to learn).