Samsung and Sprint (NYSE: S) are pulling out all the stops to promote the Instinct this summer. Continuing with cross-platform promotions already underway, Samsung has partnered with Break Media to create a three-part Web series featuring tours of professional baseball parks in San Francisco, Boston and Chicago. Footage from all of the videos is being captured on the Samsung Instinct and the first episode is now available at break.com and a Samsung Instinct branded channel. The Web series will roll out with new installments each week through the end of the month. Less than a month since the device launched, Sprint’s already called the Instinct its “best selling handset in the past two years.” Earlier this month, Sprint asked filmmakers to “sell out” and include an image of the device in their short videos for $20 each and a chance at a $10,000 grand prize.