Because a lion's share of radio listening happens in the car, the mobile environment naturally suits Pandora. And it cemented the company as "radio," not some undefinable, but really cool "thing." It took longer for users to treat Facebook the same or in similar ways. That's how it went down, yet, drunk on hindsight, critics yelp Zuckerberg missed the boat! That's as absurd as it is unfair. I bought more Facebook stock on Tuesday before Zuckerberg spoke. I like the guy. I have confidence in his ability. He's clearly one of the sharpest tools in the shed. And he came through. He said all of the right things. At 11:18 a.m. California time, I tweeted: @RoccoPendola - Just added to $FB position. BTW, Zuck should have 2 words for people who want "answers" from him today. You know what they are. #stockaction Obviously, the CEO has a bit more tact than I do. Then, at 12:51 p.m., I tweeted: @RoccoPendola - Have a feeling that if $FB can hit $20 after Zuck speaks, it doesn't look back. Once those mobile numbers come into view, look out. FB crossed $20 after hours. You have to be careful with after-hours movements. The stock kept moving higher as Zuckerberg spoke. Without doubt, traders faded the top. Suckers bought that top in the extended session. But, the pain should only be temporary. I'm in the stock at a cost basis of just under $23. And I'm not concerned in the slightest. This thing has $100 written all over it by 2014 -- when eMarketer projects Facebook mobile revenue will top $629 million -- if not sooner. Stop! Don't say the word "valuation." Investors will not price FB on the basis of some fifth grade mathematical formula. They will assign a multiple on the basis of the amount of confidence they have in Facebook's potential for and ability to achieve consistent and rapid growth. Mark Zuckerberg went a long way toward instilling that trust on Tuesday. For patient longs, faith and strong hands will be rewarded. At the time of publication, the author was long FB and P. This article is commentary by an independent contributor, separate from TheStreet's regular news coverage.