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Having just done a C2DM implementation, the biggest factor would be that C2DM requires 2.2 or higher. I didn't fully explore how urban airship's helium works bu
by andrewjshults 15y ago
Having just done a C2DM implementation, the biggest factor would be that C2DM requires 2.2 or higher. I didn't fully explore how urban airship's helium works but they state support for 1.6 and higher. Beyond that, they also have a unified API to do push between iOS, Android and BBOS. We had already built out our own iOS push system, so the unified API wasn't an advantage. A bit more documentation from google on how to implement C2DM would have been nice, but there is enough out there to get it up an running.