RunKeeper, the popular mobile fitness and GPS tracking app, received an update Tuesday which allows for some interestingPebblesmartwatch features. Thanks to deep integration with the Bluetooth Smart-enabled E-paper wrist device, RunKeeper users can keep track of their workout stats on their Pebble.

This includes the stuff like displaying elapsed time, distance and pace or using the wrist device to pause and resume RunKeeper. The application also supports an additional seven languages and includes the obligatory bug fixes.

RunKeeper Pebble integration

RunKeeper also said future updates will enable even deeper Pebble integration. I’ve included a nice promotional video and more details for you, right past the fold…

According toTechCrunchwhich spoke to RunKeeper CEO Jason Jacobs, additional Pebble-related functionality will be added by way of future updates.

RunKeeper Pebble integration (teaser 002)

The upcoming features may include setting pace on the smart watch, setting distance targets and more.

“RunKeeper also worked closely with Pebble to get this particular integration developed, and says we’ll see similar UI elements used as other fitness tracking apps come on board,”the technology publication writes.

Here’s your pretty nice promo video.

Release notes for RunKeeper version 3.3 specify the following changes:

Support for new languages!You can now use everything from goals to audio coaching in Spanish, French, German, Italian, Brazilian Portuguese and Japanese!

Track your runs with your Pebble watch!– Use your Pebble watch to view your stats while working out.– Pause and resume RunKeeper right from your wrist.

Lots of other improvements and fixes for bugs that you hopefully never noticed!

RunKeeper is free to download for iOS and Android from theApp Storeand Google’sPlay store. The free Pebble companion app is also available oniOSandAndroid.

Although the Pebble smartwatch isliterally unrepairable, it has a software development kit to allow programmers to extend its stock capabilities with new features.

A recentPebble OS updatehas resolved power-savings issues on iOS devices. More interesting than that is support for third-party watchfaces created by the watchface SDK.

If you already own a Pebble and arejailbroken, you can use theBTNotificationEnabler tweakto send all iOS Notification Center alerts to the device.Released mid-April, the Pebble smartwatch is available forpre-order through Kickstarter.

In my view, RunKeeper’s Pebble integration gives us a nice insight into howApple’s rumored smartwatchmight integrate with the broader iOS ecosystem.

And should Apple provide an iWatch SDK forthird-party support via Bluetooth, apps like RunKeeper and health accessories such as Nike’s upcomingsecond-generation Nike+ FuelBandcould similarly add new functionality outside Apple’s stock features.

Bloombergheard the Apple smartwatch will run iOS, so there’s hope it could be jailbreakable like Apple’s existing iOS devices are.

And that alone could easily become the iWatch’s most important game-changing feature…