I was answering an email from one of our systems engineers this week and dug up this old demo to show him how you could quite easily implement sliding panels in LabVIEW. While I've shown a similar technique before I realized I've never shared this particular demo.
What's cool about this demo is that you can have multiple panels sliding at the same time and the animations can be interupted mid-animation. Here's a video of it in action:
You can download the attached to code to see how I did it (LabVIEW 8.6 source IIRC). I haven't documented the code much and it's been a while since I last looked at it so please excuse any less-than-perfect coding style you see in there. If you have any questions, leave them in the comments and I'll try and answer them.