In case you missed it, there are new rules regarding medical time-outs for on-court cramping, which could come into play if Melbourne decides to actually have a summer during this fortnight. Tom Tebbutt has a good write up here. The upshot is that you can no longer call an MTO for simple cramping. If the trainer comes out and determines it's just cramping, they can rub you down during the changeover, but you don't get an MTO.
I think this is totally fair. I hate how the MTO was used to punish players who actually the hard yards in and had superior fitness and conditioning levels. I love DelPo, but I hate hate hate that he calls MTOs for rubdowns.