Does EAP/SIM make sense for others than mobile operators?

Hi,
I'm wondering about the many different EAP authentication protocols. One of these is EAP/SIM (initiated by Nokia). I think the advantage of this authentication method might be the kind of key exchange. Users are familiar in using SIM-cards. Out of this consideration I have some questions:
* Is EAP/SIM as secure as EAP/TLS or EAP/Cisco?
* Does it make sense to use EAP/SIM as an WISP (given that the WISP is NOT a GSM/UMTS mobile operator)?
* What is the position of Cisco to EAP/SIM? Will Cisco support it?
Best regards,
Armin

This white paper should help: http://www.cisco.com/warp/public/cc/pd/witc/ao1200ap/prodlit/wswpf_wp.htm

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