points us to the news that RIM, the maker of the super popular Blackberry device and service, is apparently trying to block Twitter's trademark application on the name Twitter
. Twitter, of course, is the also quite popular online messaging/presence solution. While both the Blackberry and Twitter have been subject of accusation of being addictive, it's difficult to figure out what possible cause RIM could have in blocking the trademark. RIM doesn't appear to have any trademarks on anything similar to Twitter already, and no one seems to have come up with any suggestions on any other reason why RIM might have cause to block the application. Even if RIM has some reason to oppose Twitter, the lack of it being obvious suggests that the whole thing is quite questionable and RIM would be better served letting the matter drop.