Navigon has released two new GPS units today, the 5100 max and 2090S. The duo reside exclusively at Radio Shack for the moment, however. The 5100 max features a 4.3-inch touchscreen, Reality View Pro / Lane Assistant Pro technology, handsfree Bluetooth support, text-to-speech and free real-time traffic updates for life. It’s little brother the 2090S features a 3.5-inch touch panel and most features of the 5100 max, besides Bluetooth. The 5100 max and 2090S are available now at Radio Shack for $299.99 / $199.99 respectively.