Here's some blasts from the past.
Prediction, May 2005: Seventh-gen market share by end of 2010 to be "Microsoft at 30-35 percent, Sony at 45-55 percent, and Nintendo at what's left."
Verdict: Incorrect. Based on VGC numbers, global market share was at about 46% for the Wii, 28% for the 360, and 26% for the PS3.
http://www.gamedaily.com/articles/features/wms-ps3-to-win-console-war-because-of-blu-ray/70379/?biz=1">Two Predictions, May 2007: PS3 to 'win' seventh generation by slim margin (excluding Japan sales) because of Blu-ray. Blu-ray to win format war over HD-DVD.
Verdicts: First prediction incorrect. Even excluding Japan, the Wii was the #1 console of last generation. Second prediction correct. Blu-ray won the HD format war. HD-DVD has been dead since 2008.
Prediction, June 2009: Wii to get price cut before holidays.
Verdict: Correct. The Wii was reduced $50 to $200 in the U.S. in September.