On the 29th November 2010 the transition of the technical management of the IN-ADDR.ARPA DNS zone officially commenced with the exchange of coordination staff details between ARIN and ICANN.
The transition effort, which brings together number of talented professionals from both ARIN and ICANN, will take approximately 11 weeks to complete. The target, at this stage, is to complete the transition on the 14th and 15th of February 2011 resulting in the ability for ICANN to DNSSEC Sign IN-ADDR.ARPA.
The 11 week process to effect this transition consists of a number of stages where significant emphasis is placed on ensuring stable and consistent action that involves multiple testing regimes and sign-off points such that the greater Internet community can be assured that all possible care is being taken.
As of writing this post, the format in which the IN-ADDR.ARPA zone and the operational configuration details will be transferred to ICANN were being confirmed along with the exchange of authorisation credentials necessary to retrieve this data.
More information will be posted in due course.