Google is releasing App Inventor for Android. You can find it listed at Google Labs and can learn more about it at http://appinventor.googlelabs.com/about.
There is obvious potential for m-learning, including quizzes, educational games, mini-courses, informal learning.. really the sky is the limit. If development is as easy as they claim, then we can focus even more on design and are not as limited by the complexity of app development. The App Inventor uses Open Blocks, which is distributed by MIT's Scheller Teacher Education Program. Please note, the apps are for Androids and I will assume they will not be supported across all smart phones, which is a hindrance in developing m-learning.
According to the site, they will be granting access to interested users in the coming weeks. I have put in my request and will let everyone know if/when it is granted. All that is needed is a Google account to sign up.
Here is a video Google provides showing the development of a very simple app.
Google also provides descriptions of examples that have been developed.