Couldn't log in just now on Party...are they switching it tonight?

I wanted one more night of datamining, but i guess i blew it.

I'm logged in right now.

I just started mining a few days ago... is it going to be obsolete once Beta goes into effect?

Nah it wont useless as you can still track hands that you play in. The problem seems to be that you can no longer get observed hand histories.