Very interesting solution. It does work.
I use a similar approach to confirm locations using Google Maps. However, I just use a formula field with the following formula:
"http://maps.google.com/maps?t=k&q=loc:" + ToText(Location.Latitude()) + "+" + ToText(Location.Longitude())
Assuming Location is the name of the Location Field. If you set the formula field type to URL, then it will give you a hyperlink to Google Maps. You might also be interested in this discussion we are having to make these types of hyperlinks easier to use.
This might help you to avoid having to run a separate action 