Don't know if it's mentioned yet ..
Paid developers

Yes we've already covered this in a different thread:
https://bitcointalk.org/index.php?topic=656720In short:
No premine, instamine, or IPO.
0.125% of the block reward as a tax to the development team
50% of transaction fees, halving 3 times (25%, 12.5%, 6.25%) then dropping to 0.
Many have suggested a higher % of block reward (1%), we'll confirm the actual amount if/when we get to a final specification. It will certainly be under 0.5% though.
Sure that could work. But it doesn't cover third party development, which will be the main driving force in cryptocurrency penetration in this year and the following .. and not just one centralized development team.
How can you keep them from becoming entirely closed source? Toward my point, how would you solve the problem of privatized GPU miners cornering markets? Take a look at BBR right now, over 50% of the coin is mined by Christian and Christian alone. Not all the hard-coded centralized developer fees in the world can stop that, and he's currently in a position where he would require infinite money to open source or even distribute his software.
What then?