Ashton Kutcher backs Invi: Actor Ashton Kutcher is but one of the backers in Israeli startup Invi's $3 million financing round, wrapped up this week. Another A-list name on the roster is Hong Kong billionaire Li Ka-Shing. The 1-year old startup is developing an app to enrich text messages on smartphones; it can already be uploaded from Android app stores. Among other things the app enables users...