A recent media release, heard I think on ABC radio in Aust, refuted the theory of mobile phones causing fuel (petrol or kero) to ignite.
I don't remember too many details, other than the release claiming that there have been no recorded instances in the world of such events and claims to the contrary are supposedly false.
ps (edit)
Chocks a Google search of Australian sites only, with the search criteria of "mobile phone safety" led me to
this link at the AMTA (Australian Mobile Telecommunications Association) web site. Whilst I recognise they possibly have a vested interest, I can't imagine they'd risk prosecution by posting a disclaimer to the
urban myth if there was a chance they were wrong.
pps,
ooh, it looks like I've inadvertently stepped on Mr Perpetual_Hold_File's toes. My humble apologies.
must remember to refresh the page before adding post script!