Well, it was bound to happen. The world needs an open and interoperable standard. In fact that's what made iBeacon attractive in the first place. Radius Networks has recently proposed a new, open standard called AltBeacon. We'd love to see a truly platform-agnostic solution; currently only an Android library has been released, but it's still early days.
In fact just this morning Radius Networks announced the RadBeacon USB (my personal beacon of choice) now supports iBeacon and AltBeacon concurrently! That's a pretty huge step in bridging the gap.
While we at GalacticWidgets don't support AltBeacon (yet - Diviner isn't even live yet, so it's our priority), we're keeping a watchful eye on it.