Will the new units have the same problem as the old Singles where it wouldn't stop working on a problem for 5 seconds making it useless for p2pool?

The answer is yes.

Regards,
BF Labs Inc.

So they will work with p2pool? Or will they have the same problem? (My question was ambiguous - not your fault)

They will work without any problems.

Regards,
BF Labs Inc.

What about the mining software ?

Easyminer or cgminer ?

Forced use of EMC pool again or not ?

Looking forward to response !