I just had a batch of Priority Club Points post this morning. Hilton points seem to be posting as normal.
One thing I have noticed is the frequency by which Topguest scans foursquare has gone down. It used to post within an hour or two. Now, it might take several days for me to get the email telling me the points are in Topguest's system. Maybe as their user base grows they had to decrease the frequency of scans (if that is how it is done?). Or, perhaps as their userbase grows, it just takes longer for the queue to be processed?
In any case, points are seemingly being accrued, albeit eratically.