I missed this news that was announced today, thankfully LZZR had a keen eye on the search engine press releases.
At the request of WhiteHat SEO community on April the 1st this year all major search engines including Google, Yahoo and MSN Live declared their joint support for a newly developed XFN standard.
The new attribute rel=follow is designed to complement the notorious rel=nofollow. However unlike nofollow attribute rel=follow is designed to express not negative but positive relationship between a linking website and a website rel=follow link points to.
Henceforth, the rel=follow tag will be in place, allowing savvy SEO’s to extract 2x the benefit off each link. So now rather than using this standard link code: we can use and spiders will follow our links twice as fast as before!
Thanks to Andy Beard for spotting it.

April 7th, 2007 at 7:05 pm
I did specifically bold the date in the text
April 7th, 2007 at 7:34 pm
Yep, April 1
September 28th, 2007 at 5:28 pm
So fill us in, after 6 months of dofollow, how did the positives stack up against the negatives?