I am having a hard time wrapping my brain around how the perks are going to be divided amongst the skills. Last I saw was 270 perks with 18 skills or 15 per skill. How would you come up with 15 perks for skill like lockpicking, pick pocket, and sneak? I don't believe there has been much info released on this. Any ideas?

12-20 per skill, some with multiple levels. For instance there's one for two-handed weapons that increases the damage you do with two-handed weapons overall, rewarding you for specializing in that tree. I imagine the lockpicking tree will be relatively simply, with a line of perks letting you attempt harder locks, one that gives you more chances to fail before your pick breaks, etc. Pickpocket has some interesting ones, like the ability to steal equipped items (probably not their whole outfit, though) and ones that let you carry more stuff or always succeed at stealing keys off people. It depends on the skill.

I believe info is released on a lot of pick pocket perks. I saw brief descriptions of at least half a dozen on the wiki anyway. One that improved the odds when stealing gold, one that gave automatic success to stealing keys, two that allowed some degree of stealing equipped items, etc.
For lock-picking, I could see one to let you pick locks quickly in mid-combat, one to allow you to pick a special category of locks, one to make a lockpicking game easier, one to make it so that you never broke a pick (ala the skeleton key in Oblivion), etc.

Still, I agree that 15 per skill sounds like an awfully high average.

You don't HAVE to get all the perks for a skill. You have some room to choose and spread the points in several skills.

I think the way the perks are going to work out - like you can have 2 major skill completions with some other helps. what is it, 50 out of 220?

20 each skill at most..

that's like 2 and a half full skill completions ?

hmm, going to have to think about how I'm gonna play this now.

Well it's unlikely that you'll want to fill out an entire perk tree. It'll be closer to 5 tree you fill half than 2 you fill completely with half a tree to spare.

So you get to pick up a perk when you level up? That's 50-70 perks all in all till you're max level..

It is a tree though so in order to get a certain higher level perk your striving for you have to pay into the branch.

You get (about) 75 perks, they removed the 50-cap.

Well 1 and 2 handed trees are branched in 3 bits so it's logical you pick either swords, axes or maces rather than all 3 due to limited perkpoints. I can see a similar choice with other perks like destruction with 3 elements, conjuration with weapons/armour/creatures, smithing with weapons, light and heavy armour,....