Twitters from the attic
Alice points us to this neat Botanicalls DIY kit, a kit to build a device to that you sit in your houseplant and it twitters you if it's been overwatered, is in need of water, etc.
Pretty neat, but I could see this having other uses. I could see myself sitting one in the sump pump in the crawlspace, so I get a message on my phone if we have any flooding occurring. Cool.
As an aside, I love that there is so much open source & DIY hackery still alive in hardware. I really should bust out the ol' soldering iron!