there's some numbers on the olo kickstarter page... X-Y resolution: up to 0.042 mm (quality dep. on device) , Z resolution: up to 0.036 mm (0.12 mm in quick-mode)
Even if you add on the cost of a dedicated smart phone it's still a pretty cheap way to a 3d printer.
I'm wondering who will be the first to have a print ruined by leaving their phone on vibrate mode while it's printing.
The interesting thing about photocentric is their resin. It cures in regular light rather than UV light so post processing is just a dunk in water rather than a turn in a UV oven. Also you can clean it in water rather than acetone. That's mostly what put me off form1s... and moonray for that matter... and the titan1... I've been looking at resin printers for a while...
It's also interesting that they're splitting off all the intelligence from the printer - once you've got rid of all that you've just looking at a vat for the resin and a motor to lift the build plate up and down. So the printer end's up being a cheap simple part but as I don't have a smart phone I'd rather have one that plugged into a regular pc as a second monitor.
I'm a teeny bit biased though as I ordered an LC Mini in jan. (Just heard that the delivery date has slipped till June). Not expecting too much but I'm hoping I'll be able to use it to proof designs and get a better turn around on things I'm working on. Being a bit tight I tend to wait till I have £30 or so worth of models to print before sending an order to offset the postage so each design can take months.
I'n not convince that it or the OLO are the definitive printer for T-Gauge but I'm fairly convinced that one along those lines will be in the not too distant future.
Also shapeways have started offering this kind of printing - from what I've seen it's offering better quality and consistency than FUD although their current pricing strategy rules it out for smaller scales.