Thanks Ira. Hot links, if I'm saying it right, You enter a keystroke and then the app launches.
The term Hot Link
generally refers to a link on a page that either takes the user to another location or pulls in data, typically a graphic, from another site or location. What you are describing would be more generally is referred to as an application launcher
. Search the App Store for application launcher and you will find a hundred or so applications and ranging in price from free to around $6, using an equally wide range of techniques. Hopefully one or more of these will meet your needs.