Nails. Titanium nails. 6 of them. And 6 of the more traditional "shepherds crook" type pegs. That's what arrived this week by way of those nice people at ultralightoutdoorgear. I reckon I'm now good to go for pitching on anything up to, and including, concrete.
While I was shopping for pegs, I picked up another OMM Duomat. The one I've already got makes a fine sit-mat or, opened out, a loafing-mat. I used it under my Thermarest "three quarters" last time out as a wee bit of extra insulation from the ground, Two will be handy for those times I use a full length mat.
All 3 of my OMM bags are designed with carrying an extra Duo in mind so it'll be interesting to actually try it. Both fit neatly in the Jirishanca and there's no significant loss of available volume. I'll try it with the other 2 when I get a minute.
I can imagine getting away with using just the Duo's on their own somewhere soft and grassy but I seriously doubt I'm hardcore enough to do it anywhere else :o)