Alrighty...
According to The Digital Bits, they made calls to some retailers in Orange County (California), Blu-ray hardwares (players) made quite a dramatic jump in sales since Warner's announcement.
Prior to the announcement, Blu-ray players were selling 3 to 1 (HD DVD players).
It jumped from 3 to 1 to 20 to 1. Keep in mind that this is just in OC, it's not an official number across the nation. But it is very likely that in some areas, the sales are increasing dramatically due to the announcement. What this means is that more people are becoming more confident in making a safe long-term investment. Salespeople are now recommending them over HD DVD.
Just take a look at eBay. HD DVD players are now the #1 selling item. People are trying to unload them off. Many are even returning their HD DVD players they received for Christmas to the stores.
What a month this has been. To tell you the truth, I think we are just entering the early stage of mass adoption starting this month. It's going to be quite a year.