The Korean Mobile operator KTF announced yesterday their first fully functional 256MB and 512MB USIM prototypes.

Mainly used by Smartphone and 3G, USIMS until recently weren’t available with these capacities and by adding memory in your telephone SIM card this will greatly help you to carry important data and your latest MP3s. KTF also announced that a 1GB USIM card would be available in the second half of this year.