I work in a telecom environment. Something like OSGi will be very useful for us. We deploy applications to clients who cannot go offline without taking a hit on revenue. They process thousands of calls per second. Right now, they have to do the updates in their maintenance window to take in new fixes or updates.
If we can deliver fixes and enhancements as a hot deploy, it will be of a great benefit. But of course there is a risk factor and extra testing efforts with simulated traffic test before we can do it.
OSGi is not just for dynamic updates, it is good for things like versioning to assure that the right version is being picked in a complex environment.
We are starting to look into OSGi, I will post updates if I find anything more interesting.
