Just to clarify on the soldermask/silkscreen color. The color has been a bit variable the last three/four orders, since I've been working on getting just the right shade of purple. From now on, it should be pretty stable. Purple soldermask, white silkscreen.
As lilimike said, I post the order date so if you sync up your dev schedule with the order schedule, you shouldn't be waiting too long for your boards. Heck, worst case scenario (you order the day after a panel goes out), you're still not looking at more than 4 weeks to getting your boards.