Very simple mod that gives every unit in game +1 additional Move Points. Blast off!
Want to go even faster? Edit code.sql and increase the +1 to a number of your choosing. Great for Online speed games, testers, or anyone with generally low patience. May affect the AI's ability to fight (but may actually make them more effective by disentangling them).
Note that rivers or jungles will still slow the units, so an element of strategy remains.