Well, No LEAP encryption as of now, so I'm stuck with EDGE for work data connection as my university/hospital uses Cysco/LEAP for wifi. 
My company still uses plain old WEP, for that I am thankful.
Leap has not been present in a lot of consumer level wireless devices thus far. It really does not suprise me that it's not in the iPhone. Leap has been something driven by "enterprise" class wireless devices first.
That's changing as more companies adopt those security standards and people want to bring their "consumer" level devices to work, they are getting a rude awakening.
...I just hope they don't store any customer information! I would be pissed if I were your customer if that's the case. Identity theft is so widespread anymore...