Femtocell 3GPP Specifications

Now with Release 8 frozen, if you are Femtocell follower then there are couple of specs that you can read:

3GPP TR 25.820 - 3G Home NodeB Study Item Technical Report: Contains study of items from RAN#2, RAN#3 and RAN#4 point of view.

3GPP TS TS 22.220 - Service Requirements for Home NodeBs and Home eNodeBs: It lists different requirements as the title suggests. You can see some more info on this at Martin's blog.

Over the next few months since the Femtocell race is heating up, you would find these documents being updated with lots of details and probably stage 2 and stage 3 documents detailing some implementation details, etc. Will keep you informed.