In an exceptionally close PC Advisor poll that asked 'What will be your next smartphone operating system?', Google Android pipped the Apple iPhone's iOS by just 0.4 percent.

Of the 1,177 respondents, 22.3 percent named Google Android as their next smartphone OS, while 21.9 percent plumped for Apple iOS.

"I'm gonna stick with Android," wrote forum member AL47. "iPhone OS is too restrictive, Win Mobile doesn't have a good track record, but they always seem behind the others anyway, BlackBerry isn't for me... the others aren't well supported."

BlackBerry was closely behind in third place, with 16.7 percent of votes, with HP webOS in fourth (9.6 percent).

Microsoft's newly launched Windows Phone 7 polled a disappointing 9.1 percent, while Symbian picked up 8.2 percent of votes.

Based on 1,177 votes, 3 November 2010. Add your vote to the poll, or join the discussion on PC Advisor's popular online forums.

See also:

Poll: Which brand of smartphone do you own?

Mobile phone news spotlight

Smartphone reviews, mobile forums and blogs

Google Android review

Microsoft Windows Phone 7 review

Apple iPhone 4 review