I don't get the license. Can I use the code in a commercial product? Any limitation?
Yes, you can use it in a commercial product. The 2 big restrictions are:
- As with the GPL, a distributed copy or derivative must be distributed under the same licence.
- Unlike the GPL, the limitation to contributions are that: "Each Contributor represents that its Modification is believed to be Contributor's original creation". This means you cannot merge this with other products that you did not create, even if the licence of those products allows it. This makes it largely incompatible with other FOS licences.