This is now fully compatible with Phonegap 2.4 and GWT 2.5. It contains the new APIs such as the InAppBrowser and the Globalization API.
This version fully works with mgwt.
As always you can get the new version from google code or from maven central:
<dependency> <groupId>com.googlecode.gwtphonegap</groupId> <artifactId>gwtphonegap</artifactId> <version>126.96.36.199</version> </dependency>