Sometimes the 1000 loses its pairing with the PS3. I have to turn the PS3 on with either a controller (via wireless works fine for controllers) or by the power button, and re-pair the device. Once re-paired, everything works great.
I haven't found a cause for losing pairing yet. Sometimes the pair stays good for a day or two, sometimes only a few hours. I wonder if it has something to do with the other bluetooth devices in the same room (cell phone and PC), since the 1000 seems to try to pair with my computer when it is not paired with the PS3 and receives an IR command. As soon as an IR command is received, I get a connection request on my computer if the 1000 is not paired with the PS3. I have never lost pairing or had similar behavior from the PS3 controllers.
I have the 1000 powered by USB from a computer, it is always powered on. The power sense cable is connected to the PS3. The PS3 is always plugged in, and as far as I know there have been no power outages.
I've owned the 1000 since late December 2009, and have not done any firmware upgrades. The PS3 is up to date with whatever the latest version is.
Any ideas about what would cause this behavior?