The "Download Now" link directs you to the iTunes App Store, where you must continue the download process. You must have iTunes installed in order to open the link, and you must have an active iTunes account to download the application. This download may not be available in some countries.
From ParraWorks Mobile Solutions:
Yoga for Runners is the new i-phone app for runners new to yoga or practiced in their poses. Geared towards runners who want an on the go yoga application they can use at home or take with them anywhere. With the Yoga for Runners application, you'll have perfectly balanced yoga pose sequences for your pre-run stretch, your post-run fix, and even your off-day yoga intensive. Yoga for Runners has been created by a group of runners and yoga instructors with you in mind to stretch those tight t-bands, open those hips, stretch your tight hamstrings and bring your body into greater balance as a whole. Sequences are complete with photographs and instructions for even the newest yogi to try easily. Running and yoga is the perfect harmony of endurance, strength, balance, and tone. You bring the running, and we'll supply the yoga. See you off the mat.