On the list of all the things Research In Motion (NASDAQ:RIMM) would like to see users say about its BlackBerry smartphone, "fail" has to be at or near the bottom. But that's what they're saying on Twitter.

The phrase "blackberry fail" is still pulling comments after yesterday's nationwide network outage. And this morning, "BlackBerry" is what Twitter calls a trending topic of discussion. Many of the comments are, shall we say, less than flattering.

Some predicted the BlackBerry's decline in the face of the rising threat from Apple's (NASDAQ:AAPL) iPhone and Motorola's (NYSE:MOT) Droid. Other tweeters spoke of losing patience with a device they've come to rely upon.

We don't know exactly what happened. All we can say for sure is that the problem was and may still be pervasive. Earlier today, Dow Jones reported service delays in the Americas and parts of Asia.

But there may be a bigger problem to address here. Venture capitalist Fred Wilson, an early investor in Twitter, theorizes in this blog post that Research In Motion's network troubles caused problems for AT&T (NYSE:T) and Deutsche Telekom's (NYSE:DT) T-Mobile, among others.

"I guess that means that Blackberry has some kind of overlay network on these carrier's data networks. I am sure that is well known to mobile phone geeks and has been true for a long while. I just never wrapped my head around it," Wilson writes.

It's an interesting take, and a dangerous realization if he's right. RIM is contending with consumptive competitors in the iPhone, Palm's (NASDAQ:PALM) Pre, and the varying handsets using Google's (NASDAQ:GOOG) Android operating system. If RIM's network can't digest the data it feeds on now, what will carriers do to insulate themselves from the resulting heartburn?

Next year's likely to bring even more smartphone traffic, which could mean more outages for BlackBerry users. My guess is some of them will choose not to stick around for the misery. That's why I'm still short the stock in Motley Fool CAPS.

Now it's your turn to weigh in. Would you short Research In Motion? Please vote in the poll below. You can also leave a comment in the box at the bottom.

Google is a Motley Fool Rule Breakers recommendation. Apple is a Motley Fool Stock Advisor selection. Try any of our Foolish newsletter services free for 30 days.

Fool contributor Tim Beyers had stock and options positions in Apple and a stock position in Google at the time of publication. Check out Tim's portfolio holdings and Foolish writings, or connect with him on Twitter as @milehighfool. The Motley Fool is also on Twitter as @TheMotleyFool. The Fool's disclosure policy wonders if anyone really means it when they sing "let it snow"?