Tempting. Very tempting. I've actually just gone to a 28-day Skinny plan with 150mins rollover (never use any) and 750MB rollover for $16. I cold use the extra 250MB/mth and that data clock is a real bonus for the odd heavy usage too. But my locked Skinny phone is only 6 months old so it's only free to unlock after another 3 months unless I pay the $30, which I won't do on principle. So I guess that give me some breathing space to weigh up the pros and cons.
@cadman Skinny now has the "Core" plan for $16 with 150 min and 1GB data (both rollover). I've just upgraded my old Big Value prepay combo to the Core plan and my carryover remained intact. I had to pay the $16 up front when I changed, though.