An autralian website giving some samples of case studies, the studies
are unfortunatly not very detailed and it does seem to be their own
campaigns they are talking about the refer to the following campaigns.
Dunkin Donuts, Radio 98FM radio live poll,MacDonalds, Star boy band to
SMS its fan base, TV launches SMS-based marketing campaign,  The
Hilton Hotel group, a chiropractor,Cheap fuel a great prompt,
Girlfriend's best friends, Eagle Boys,Win a mobile phone competition,
Starburst's "More Juice More Burst" campaign, Nestle ran a "Grab. Gulp.
Win!" promotion for Nesquik, Kraft Foods