More from Research In Motion's (RIMM) FQ2 call: Thorsten Heins claims mid-tier BlackBerry 10 devices will arrive by next fall, and low-end "concept designs" could appear at some point next year. That could be too late, given Android's low-end march. BlackBerry 7 will be supported "for quite some time," particularly on the low-end. Heins adds RIM has met with CEOs from several companies about partnerships and BB10 licensing, but provides few details. (more) (live blog)