Unlike the lean-startup world where pure-play VCs dominate almost all early-stage investments, we have seen quite some corporate investors stepping into early stage investments in the hardware field. Usual suspects are large manufacturing firms such as Foxconn or Flextronics, as well as some consumer electronics brands.
I believe that a more complete hardware investment eco-system will take form in the next 2 to 3 years. However, before that happens, a hardware founder should, like any founder, really think carefully over all funding options. A dollar is never just a dollar. There could be a lot of good things and bad things coming with it.