Here's another one from Garmin, starts at about $4000:
http://www.businesswire.com/news/home/20141028005398/en/Garmin%C2%AE-Introduces-Cost-Effective-ADS-B-Solution-General-Aviation
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Industry-First Dual-Link Solution for Certified Aircraft
The GDL 84 provides a rule-compliant ADS-B Out solution for aircraft operating below 18,000 feet in the U.S., while offering access to traffic information and subscription-free weather. Innovative dual-link capability allows the GDL 84 to receive on both the 978 MHz UAT and 1090 MHz frequency bands to provide the most comprehensive display of traffic information available in the industry.
All-In-One System
Installation is quick and easy because the GDL 84 is a straightforward solution that wirelessly transmits weather and traffic information via Flight Stream 110/210 to a mobile device, instead of an installed multifunction display in the cockpit. Additionally, for aircraft owners who do not already have a compatible WAAS GPS position source on board their aircraft, the GDL 84 offers a built-in WAAS GPS receiver. The GDL 84 is an all-inclusive solution, which meets regulatory requirements and gives pilots the added benefits without the cost associated with a large installation.
....The GDL 84 is expected to receive the FAA’s Approved Model List Supplemental Type Certification (AML STC) in Q1 2015.