In the SKIMS project, we ported UCLouvain MPTCP implementation to Android 4.1.2. If you are interested in running MPTCP on Google Nexus S, please, have a look at https://github.com/mptcp-nexus/android

The complete package (https://github.com/mptcp-nexus/) includes:

• A modified Android Connection Manager, which enables 3G and WiFi in parallel (in android_framework_base).
• A modified Network Daemon, which automatically configures routes for both interfaces (in android_system_netd).
• A modified iproute2 package to enable the MPTCPControl app to support MPTCP specific commands (in android_external_iproute2).