"I was shocked because Apple is bringing the full internet [to mobiles] - full web pages with pictures and everything - and it's not 3G and I knew that would be a speed detriment." Wozniak, who has moved on to new ventures since Apple but is still an employee and shareholder, said he did not know when a faster 3G iPhone would be released, although it had "sort of been known since day one that it would be here [eventually]".

The current iPhone model supports fast EDGE networks operated by Telstra and regular 2G networks, but both aren't as fast as 3G. At the UK launch of the iPhone, CEO Steve Jobs said Apple left out 3G support because it would have a detrimental effect on battery life. "I never heard that it was a battery issue," said Wozniak. "I don't understand why it would be a battery issue - I get as much life on my 3G phones as I get on my non-3G phones."

He said he still used the iPhone and praised its internet capabilities but he also carried a Motorola Razr for taking calls and browsing the web. The iPhone is due to launch in Australia this year but thousands have already imported the device from overseas and unlocked it for use on local mobile networks.

When the MacBook Air was launched in January, Apple was criticised by reviewers for trading off too many essential features in favour of a lightweight, streamlined design. The criticisms centred on the lack of a DVD drive, missing Ethernet networking port, relatively small 80GB hard drive and the inability to swap the battery. Wozniak agreed with those criticisms, saying: "I don't think it's going to be a hit." He said he liked to burn a lot of DVDs for friends and watched movies on planes, and so needed the ability to swap batteries mid-flight.

"I'm trying to figure out a way to make the Air a part of my life because i'm a one-laptop-only person," he said. "I don't feel it's a benefit if you have to carry the Air plus a DVD player plus a couple of extra dongles to connect to Ethernet things and also maybe an extra hard disk to carry your music - but still there's a pureness about it and really I like it."

Wozniak said he believed Apple TV - with its on-demand access to movies and TV shows without the need for a computer - was "a really good indicator of where the future is". But he criticised the 24-hour time limit given to users who rent shows via the device and said the quality of YouTube videos played on it was poor. The rental feature is not yet available on the Australian version of Apple TV, as the local iTunes store only offers music.

"My life is way too global and unpredictable for that [24-hour time limit] - I'll get interrupted by something and I won't finish it; I don't want to have to pay again," Wozniak said. Wozniak, who is still good friends with Jobs, is known for his frank and honest opinions, even when asked about topics as close to home as Apple.

He said Jobs "very seldom" calls him to complain about something he has said about Apple in public. The most recent case was when Wozniak criticised Apple for lowering the iPhone's price by $US200 within 10 weeks of its introduction, burning early adopters. "We're really good friends - never argued over these things - but once in a while he [Jobs] will just have a comment, 'thanks a lot'."