TrackerBot, from Vulpine Labs, is a great new app that brings Pivotal Tracker to your iPad and/or iPhone, complete with multi-touch, drag and drop, and off-line support. It's available now in the app store.

Team collaboration with Pivotal Tracker just got better - you can now post comments to stories right from your inbox by replying to any story notification email. That's not all that's new in this update - we've also added the ability to delete unwanted story comments, you can add extra notes like company address or tax ID to your billing receipts, and there's a new public projects directory.

Continue reading for details.

We're launching a new public projects directory in Pivotal Tracker this Friday. If you own or use public projects in Tracker, continue reading, as these projects are about to get much easier to discover.

As part of the recently announced Tracker pricing introduction, we're offering a 20% discount for the first year. This discount is available until February 18, 2011.

The 20% is off the annual prices - which already give you a savings of 2 months, every year. Also, while you do have to pre-pay for the first year in order to get the discount, you do still get the remainder of the free period, so your next billing date won't be until July 19, 2012.

To take advantage of the discount, just sign in to Tracker, and click the 'account' or 'accounts' link at the top of the page.

Also, as a reminder, accounts remain completely free until July 19, 2011 for all existing users, and for all new users who sign up for Tracker by Feb 18. Tell your friends!

Pivotal Labs has been at the forefront of agile since it's early days. We've honed our skills on hundreds of successful projects, and evolved agile techniques into a very effective, and practical software development process. Along the way, we also built Pivotal Tracker, a very popular project management and collaboration app, which embodies that process.

Not only does Tracker serve as a critical component of our own development, it's also relied on by thousands of teams around the world, from open source developers, to fast growing startups, and many larger companies, including some of the most well-known tech giants.

We're ramping up our efforts, and have a long list of improvements we'd like to make to Tracker, on a number of fronts. Tracker is ready to be taken to the next level - but we need help!

We recently announced price plans for Pivotal Tracker. These plans are associated with accounts, in Tracker.

In this article, I’d like to explain what accounts are, and talk about how you can consolidate existing Tracker projects across your company into a single account.

Last week, we announced that we're introducing pricing for Pivotal Tracker. Since then, we've received a great deal of thoughtful and constructive feedback, and we're very grateful that the majority of you have shown support of Tracker’s move to be a paid product. We really appreciate all of your positive comments.

Continue reading below for details about changes to pricing that we're making based on your suggestions, and clarification of some aspects of pricing that may not have been stated clearly, including what remains free.

NOTE: This article has been updated with pricing changes announced on Jan. 28.

First, we'd like to thank all Pivotal Tracker users. We couldn’t be more grateful for all of the support and feedback we’ve received from you.

Today, we're introducing pricing for Tracker. All of the details, including price plans and transition information, are below.

The team at Flowdock, a real time team communication platform, just announced integration with Pivotal Tracker. You can now connect Tracker with Flowdock, and see your project activity in the context of your online conversations.

See this Flowdock blog post to read more about the new integration.

Happy New Year!

Pivotal Tracker has some updates for the new year: we've added a built-in integration with Bugzilla, a popular bug tracking tool, redesigned the My Projects page to make it easier to use, and made the Zendesk integration more flexible. More details on all of this below.