Et cetera. Lots of people on this forum are very familiar with how the perk system works. Or at least, what's known so far about how it works.
How do you want it changed? It's probably too late for Bethesda to change it... but modders certainly will change it not long after release if the tools don't make that too hard.
edit: I voted for:
"more inter-skill perk synergy"
"1 or more free bonus perks in each skill when you raise that skill high enough"
"wider variety of perks available"