Gadling

If we didn’t already think the death knell for Blackberry had begun, here’s yet another sign that the once leading phone platform, at least where it comes to consumer travel apps, is well on its way to becoming outdated.

Kayak has revealed that it dropped support for its BlackBerry app, NextWeb reported.

“When we started KAYAK in 2004, we issued BlackBerries to the entire engineering team so we could communicate instantly 24/7,” stated a memo from the Kayak team. “Today we’ve all switched, and it seems our users are doing the same. Our audience of BlackBerry users has been declining precipitously, and we can’t justify the cost any longer.”

Paul English, Kayak co-founder and CEO, told Tnooz last month that the brand, which has more than 10 million app downloads, has discovered an even further differentiation between platform users, namely that while both iPhone and Android users download the app, iPhone users are the ones most likely to buy online.

This may be a demographic shift. A user survey last summer also suggested that iPhone users are bigger travelers, and thus a more likely fit for the Kayak demographic.

The survey found that Android users are “36% more likely to not remember their last vacation,” and that iPhone/iOS users are 15% more likely to have taken a vacation in the last six months, and were 55% more likely to have used their frequent flyer miles to have taken several free rewards flights during 2011.

What phone do you use?