I don’t see (or am not aware of) many third party electronic accessories for non-iOS devices. It looks like the Kindle Fire has sold in enough numbers that at least one company plans to launch a $129.99 speaker and charging dock for it: The Grace FireDock. The downside is that the FireDock is not scheduled to be available until July. That’s a long ways off and I would not be too surprised if it never sees the light of day.