Andrew,
As another BB convert, this is one thing I really needed coming to Android. I'm sure you have a lot on your list to develop this, but as a general request, if you have any access to Bebuzz for Blackberry, it has some great features you could look into. For example, changing the speed of the pulse, double pulse, strobe pulse (tripe, multi-color), etc. Not sure how easy this is on Android, but it's worth asking for I guess.
P.S. still testing some functionality on the free version, and may wait until GB is released (hopefully soon!) but then will purchase for sure.