Popular gadget reseller Gazelle has reported that it has seen a record-number of Blackberry trade-ins since the iPhone 4S launch. As of last week, Gazelle has seen a 80% increase in Blackberry submissions.

RIM’s e-mail and messaging services underwent serious outages recently, which could also be directly affecting the increased number of Blackberry trade-ins. Android trade-ins also jumped 72% during the past month, with the majority of sales reportedly coming from Sprint customers.

CNET reports:

Gazelle’s “Chief Gadget Officer’ Anthony Scarsella told CNET that this is “easily the highest volume of BlackBerry trades ever seen period.” That includes a “spike” following this month’s outage. “In the grand scheme of BlackBerry growth over the past month, it can be pretty much entirely attributed to the launch of the┬áiPhone 4S,” Scarsella said.