A newly designed Epipen is now available, with "enhanced usability."
 
The new design features a flip-top carrying case, blue safety release cap, integrated instructions, and an orange-colored needle tip with needle protection.  The instructions tell you to "swing and firmly push" the orange tip into the outer thigh. 

See the new Epipen here:  http://epipen.com/pdf/EP9532_TEARSHEET_DR.pdf
 
 
OK - this is a little bit of tooting one's own horn.  Here are the links to a CNN story about the importance of having to carry an Epipen with you everywhere because of food allergies. 

Story:  http://www.cnn.com/2009/HEALTH/09/04/food.allergies.bees.epipen/index.html

Video:  below