That's a good deal if you can get it.  I haven't heard of any hosts that offer this to the community at large and assume this is a private deal you have with your partner, right?  If not, I'd love to hear how I could get into something like this.  I currently have gear sitting around collecting dust that would be better put to use mining away for someone else and me getting 1/2 of what is mined.  I think a lot of people, especially now at the bottom of the market would love to participate in something like that.  Did I miss out on something?  Not a lot of people can profitably operate a miner while only keeping 50% of the revenue.