Wind Mobile has been coming out with various offers ever since they launched their service last year. The price for a SIM card is free for new customers who buy a phone, but those customers with other carriers can give Wind a go simply by buying a SIM and signing up for a monthly plan. The price of the SIM has slowly increased over the year from free to $10, then to $20 and finally now at $25. Not the biggest deal… especially if you sign up for the recent holiday promo that gives Unlimited talk, text & data for $40.
Source: Wind Mobile