At this stage we are just trying to see if we can get the CLTV txs to work properly (no such luck as yet).

Assuming we so work out the kinks with our initial testing I'll have more to say about it. For the AT ACCT you can read about that here: http://ciyam.org/at/at_atomic.html

The approach that will be taken with CLTV and P2SH will still follow @TierNolan's approach closely.