http://www.mmorpg.com/blogs/staffblog/082009/4521
The above is an interesting article comparing 4e to MMORPG's, particularly in the way that they are both geared toward combat over the eponymous roleplaying. It's sort of a look at the roleplaying genre from the other side of the mirror, so to speak, and even though I know next to nothing about 4e (just enough to lose interest), I found it really insightful. Check it out and leave your opinion.
You know, this guy obviously isn't the roleplayer he claims to be. I can't for the life of my understand why people feel like every single thing needs to be mapped out with a mechanic. The best roleplaying is done without ever rolling a dice. Dice rolling just interrupts the drama if you ask me. If my character was raised a glass blower, and the party is looking to make some flasks for potions, the idea that we should take the time to represent the obvious outcome via a bunch of dice rolling is just silly. I would rather spend that time with compelling roleplaying of the event. All mechanics do for uncontested events is take the onus off of the roleplaying and put it into the hands of rather stale mechanics. If a person cant roleplay the gradual development of their characters skill in armorery, its because they are a crappy roleplayer. Mechanics don't solve that problem. They just disguise it behind a set of numbers.
Combat is one of the few areas where mechanics are actually helpful because they represent a contest of skills, which naturally means some measurable opposition makes sense if the outcome isn't clear. There are a few other areas in which contests make sense to measure (like sneaking past a guard for example), but there are also contested skills where roleplaying should be sufficient. Want to BS your way past the guard? Do some compelling roleplaying with your charming bard and you can get past. Using mechanics again just draws away from the roleplaying and makes the outcome dependent upon good dice rolling rather than good roleplaying.
A good mechanic that actually encourages roleplaying would be Exalted, simply because you get all these powers that just broadly outline what new stuff a character can do. Stuff like Speed the Wheels just says you can speed up bureaucracies. Making that power meaningful is almost entirely a roleplaying thing. D&D 3.5 by contrast would have you rolling a set of dice. Personally, nine times out of ten I would rather have players and the DM roleplaying out non-combat skills. 3.5 mechanics actually encourages lazy roleplaying if you ask me. Lazy roleplaying is better than no roleplaying at all, certainly, but I think its funny that people elevate such a thing to idolatry as if having mechanics will magically make people roleplayers. Roleplaying is almost entirely dependent upon the quality of the people playing the game. Mechanics are just window dressing.