Download Free Maya Plugin: Instance Along Curve by Mariano Merchante. Featured on CGMeetup www.cgmeetup.net/home/instance-along-curve-maya-plugin/

Maya API Python Plugin by Mariano Merchante for interactive instancing of shapes along curves.
Download here: http://www.cgmeetup.net/forums/files/file/81-instance-along-curve/

Feature list is the following:
- It's a dependency graph node, so it works gracefully with the Maya environment.
- Instance an object by count or by distance between instances.
- Various rotation modes, including chain mode.
- Customize the instances transformation by ramps evaluated in curve parameter space.
- Customize the ramps' offset with keys or expressions for animations.
- Customize how instances look in viewport.
- Randomize instances transformations.
- User friendly, highly flexible.
- Portable and small (1 file)
- MIT License

Download here: http://www.cgmeetup.net/forums/files/file/81-instance-along-curve/

More info and about project :
https://github.com/mmerchante/instanceAlongCurve