I wouldn't say Kobe's lost his touch yet...I'd still put him top 5 without a doubt. And I don't think we should talk about his effectiveness until playoffs, when he actually turns it on, which is what he's better than anybody at the league at doing.
The fact is, the lakers haven't been playing well in general. It's not like Kobe got worse, and so did his team's performance...I think it's more the opposite. He's still making incredible plays, but sometimes his team just can't finish. When the Lakers get their act together, I think we'll start to see the real Kobe start playing, like in the past few games that they've been playing.