The iPING app is a free download from the iTunes App Store for the iPhone 4 and the smaller iPod touch (4th gen). The iPING app works in conjunction with a PING cradle ($30 MSRP), which holds the mobile device and clips onto the putter shaft just below the grip. Cradles are available for either the iPhone 4 or iPod touch (4th gen) due to the different sizes of the devices.
The iPING app will be on iTunes on June 20th. PING cradles will be available on the same date through key golf retailers' websites. Other PING retailers will offer the cradles in early July.
The iPING app analyzes and displays a golfer's consistency onscreen using three criteria:
STROKE TYPE: Stroke type is the classification of a player's closing angle, the amount of rotation of the putter face during the forward stroke. PING's research found that golfers can be categorized as one of three stroke types: Straight, Slight Arc, or Strong Arc, measured in degrees of face rotation. (Straight has very little or no rotation; Strong Arc has the most.) The research shows that players tend to be most consistent with a balance of putter that matches their stroke type. Face-balanced putters work best for Straight strokes while toe-down putters are most effective for a Strong Arc.
IMPACT ANGLE: Impact angle is the putter's face angle at impact, relative to address, measured in degrees. PING's data shows that even the best players in the world do not necessarily have a 0 impact angle average, but all are highly consistent.
TEMPO: Tempo is a measure of the duration of the backswing relative to the forward swing and is expressed in a ratio: 2 to 1, for example. The average tempo will vary among players, but the best putters have extremely high consistency in tempo.
MEASURE MODE: In Measure mode, the golfer hits five putts and their stroke type, impact angle and tempo are displayed for every putt in that session and stored. The iPING app calculates a consistency score, and then averages the scores over time to build a Putting Handicap (PHcp). As the player improves their consistency, they'll watch their PHcp come down.
PRACTICE MODE: In Practice mode, the user can isolate one aspect of their putting that's lacking in consistency tempo, for example for extra attention. Stroke type, impact angle, and tempo are displayed for individual putts.
COMPARE MODE: In Compare mode the player can compare their results with previous sessions or with those of their friends. They can even do side-by-side comparisons with several PING tour pros, whose results are pre-loaded into the iPING app.
Read More [via Engadget]