Leica X1 vs Sigma DP2S

hi,
any had both and can compare/contrast ?

I want a light APS-C sensor camera with 30-50mm 35mm equiv high quality lens

My summary, from reading and looking is that:

1. Both well made in metal, but Leica better made and looks much nicer
2. Both slow in usage. Sigma slightly faster ?
3. Both good up to 800 ISO. Leica significantly better above ISO 800
4. Better software - With the leica you get lightroom free

5. 2.0 software from Leica looks to speed things up, no signs of new Sigma software
6. Boths lenses very good. Main difference ?

any comments, etc. ?