ohh soooo schweet

if:
You could access multiple accts and select the one you need. ( I only have 1 C.C. + 1 debit ) (sorry sir, your key has been denied and we need to destroy it )
Electronic parking and toll pay as mentioned.
Have multiple cars keyed the same. Dare I say House?
Drivers License info.

Basically customize the info stored to one's needs.