On Monday Mitchell posted the article Thunderbird — Differences in response to comments on her Email Call to Action post from last week about the Thunderbird’s Future. Mitchell points out that there seems to be a trend of folks moving away from desktop based e-mail clients (Outlook, Evolution, Thunderbird, etc): Web mail usage grows. Younger generations in particular use other techniques. There are many parts of the world where email is less common than in the US, Western Europe or Japan. For example, in parts of the world where Internet cafes are a major way of accessing the Internet desktop…