NOTE: I am not implementing google maps in my application, I am passing google maps (the installed application) arguments
First: How do I find my current location in google maps?
Second: How would I tell google maps to display a route between two points.
Currently I use an activity to tell google maps to create two or more geopoints.
You find your current location using the system
LocationManager. There's more information in the developer documentation.
For the second part, this isn't something that you'll be able to do without using the Google Maps libraries. There's no existing intent or registered URI for the Google Maps application that will draw directions between two points. Sorry!