"There is no push email, contacts, or calendar on the BlackBerry Z10 except for Microsoft Exchange accounts. No push Gmail, no push Yahoo — email is checked every 15 minutes by default, and you can make this interval longer but not shorter."
Or maybe that's just sour ... grapes? See here for little insight: LINK. Anyone know how well BlackBerry 10 syncs with GMail and Google Calendar and Contacts?
