A recent study from Unisys found that 7% of 1200 surveyed Australians currently used their mobiles for web transactions.

The study was part of a global study of over 13,000 participants across 14 countries.   59% said they would not trust their mobile devices to provide a secure transaction

Online transactions using mobiles are gradually overcoming concerns about security in much the same way consumers exercised caution before embracing web based transactions.

In terms of countries, Germany at 21% had the most confidence in mobile transactions, whilst France at 12 % were least trusting of transactions conducted from their phones.

Australian banks have been gradually adding mobile accessibility to their services with ANZ offering a complete mobile banking website, and National Australia Bank recently rolling out a SMS banking service.

I believe last week's Iphone launch will be a catalyst to accessing the web from mobiles, due it's usability and data plans.