Will the SIM from my droid RAZR MAXX work with the turbo?
Anyone know?
No. The two use SIM cards of different sizes (RAZR MAXX: Micro-SIM, Turbo: Nano-SIM), so the card from the RAZR MAXX won't work in Turbo unless you cut it down. There are tools out there that will allow you to cut it, but there are potential issues that come with doing that (such as the SIM catching inside the phone if the edges aren't completely smoothed out - which can cause damage). Then, if you should happen to want to use it in the RAZR MAXX again (or in another phone that takes a Micro-SIM), you'll need an adapter.
The easiest thing to do if you're not planning on jumping back and forth between the two is to just get a new SIM card that fits. If you're with Verizon, go to a corporate store and they'll give you one for free (authorized retailers often charge a fee).