Ka-ching!   My own shares are outperforming my mining this week, then.

Serious questions about these devices' implementation of Icarus protocol though:

(1) are they interruptible (sending down a new work unit discards the one in progress immediately) to minimize stales?  This is a headache with my BFL FPGAs.
(2) If not interrupted, will they scan the entire noncerange or abort after hitting a share?
(3) Do they report found shares immediately or at the end of the work?
(4) Do they implement notification on exhausting the noncerange without finding a share?

I ask this because I'm considering rolling a little custom miner app just for them.