Statistic suggest that consumer mobile for email usage accounts for up to 30% of email openings. 

This is an excellent info graphic from e-Dialog has good data on users interaction with mobile email, and the types of emails consumers like to receive. Important statistics for direct response marketers to keep a close eye on as this channel begins to develop. Its only a matter of time before this becomes a substantial marketing channel thats very effective for real-time direct response marketing from mobile to web and call center.