[nickpsecurity]

I'm talking about licenses/models rather than specific products which come and go in this space outside dual-licensing or proprietary with source as in embedded scene.

To get more specific, you can read the source, you can modify it to suit your needs, you can submit modifications for redistribution by owner, you can fix problems, port to new hardware, often include it in your proprietary software, optional component of OSS software, and optionally fork it as GPL. (optional used to denote some paid, source-shared don't do this) That's really close to OSS software while still being proprietary to support active development and maintenance by full-time people. The dollar amount w/ associated benefits can be as large or small as one likes, even fixed. Provisions can be made for it to go BSD etc if abandoned or unsupported by original owner.

I'm just curious how far a proprietary model can go into increased OSS-style benefits and reduced proprietary-style risks. I'm sure it's way closer than people think with the dual-licensed stuff being most obvious indicators that hybrid models w/ licensing revenue are achievable.