PIX_lite is free for personnal use only.
For a commercial use, you have to send a donation to my paypal account with your name and company. You don't need a paypal account for that, only a credit card or bank account.
Link to donate: https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=samuellapointe%40gmail%2ecom&lc=CA&item_name=Samuel%20Lapointe
Or send the donation through paypal to samuellapointe[at]gmail[dot]com
UPDATE September 7th 2012, changed the font name as it was wrong! BITXEL was the name I used at first when creating the font, but I changed it afterwards and I forgot to change it's properties.