There are a lot of products that now trade specific ETF without any trading fee. Be careful with these products and make sure you read the prospective of the product.
There are 3 brokers now that have commission free ETF: Scotia iTrade, Qtrade Investor and Virtual Brokers.
However, none of the above three brokers offers the following commission free ETF:
1) iShares S&P/TSX 60 Index Fund (XIU)-T17.55----%) which is the largest Candian ETF accessing 60 biggest publicly traded Canadian companies .
2) iShares DEX Universe Bond Index Fund (XBB) - accessing the whole Canadian bond market