To many users, Twitter for iPhone (the artist formerly known as Tweetie) is perhaps the perfect Twitter client (though I’d argue that the new Twitter for iPad is right there with it). But the one thing it has been lacking and that users knock it for is the lack of Push Notifications. Well, good news. They’re coming. Soon.

Twitter is

A/B testing, which entails running multiple versions of a site at once and tracking which one performs best with users, is a key part of launching a new version of any website.Visual Website Optimizer, which I’ll just call VWO from here on out, helps users manage this often complex process. The service shares some similiarities with a Y Combinator-funded startup called