There's one issue I'm still working on with the beta. It seems to not grab new work from the server fast enough. This will surely be a problem with a mini rig. But it will be fixed long before your mini rig arrives.

Currently observed: Windows 7 with 8 singles shows slow work queue buildup but runs ok. Mac OS X with 10 singles ends up with an utterly depleted work queue and devices idling. A fix for this should be coming soon.

Congrats on getting a mini rig! I think it's awesome that so many in the pool are getting singles and mini rigs. I aim to make the miner run as smoothly on them as possible.