I don’t know if I will characterize it that way. I think that I don’t think there is, I think there is tremendous opportunity in the general lighting market. I think, you know, we may be overreacting to a 2 to 3 months trend here. I think if you look at what we target for adoption, I think, you know, when you are at a small percentage of the market, we can continue to drive significant growth. The exact timing of that is, as you know, pretty tricky because we are trying to take very large industry segments, and one by one show people LED lighting works, and start that process. So, you know, a year ago there was no real talk about an LED bulb, and that’s an application that’s now turned on. A year ago it was pretty much all about just street lights, and so we kind of keep coming after application by application. It’s really going to be a function of when do we crossover those key cost points to start that conversation and then as that happens that tends to feed more application. So, you know, I think our Q1 targets are our best estimate, but if you want to look out beyond that I really still think that LED lighting adoption for general illumination of various applications is the growth driver, and look when you are at a couple of percent of a market adoption rate for your technology, and you think it’s going up, then I think you know, the upside is significant, but timing of that is tough to understand and, you know, we’ve got to continue to execute to be successful there because, you know, accounts on new products, driving the cost down, and all the things we normally talk about.
Bill Ong – Merriman & Co.: Okay, thank you and then my last question is what's your planned depreciation schedule on your MOCVD tools today versus let us say five years ago and 10 years ago, and the reason I ask is whether or not the schedule has accelerated, which kind of reflects the faster tool obsolescence or accelerated technology adoption so how would that have an impact on gross margins?