AFP Out Of Date In OS X Lion

The 3rd party Netatalk team has been working on Netatalk 2.2 for a long time. I would expect that NetGear would have done some testing of this on the ReadyNAS but even at the Golden Master stage you should note that though unlikely things can still change in Lion. Once there is a production release of Lion NetGear can then test compatibility of the update with that (as well as some older Mac OS releases, which they may already have done). Do note that there is a lag between beta releases beng released internally and later being released as a public beta. Even if they have something basically ready to go one would expect them to wait till after Lion's released before releasing a public beta.