Really, the main reason I bought the app is that they have said that it will support both XM and ADS-B by the time AirVenture opens in July, so I'm excited about that, and consequently the price of the app itself will then increase. The XM options are already included inside of the application settings, but they don't do anything just yet.
There are actually a good number of options that, while shown, aren't yet enabled (from the Anywhere Map site): "Features yet to be added include the full HSI, some reminders, regional database downloads. Fully integrated Approach plates, victor airways routing wizard and the flight calculator."
AnywhereMap sells the "sizzle" perhaps better than anyone else in the aviation hand held market. The problem is, the steak that they deliver to you is full of disease. When you complain, they'll come back to your table and cut out some of the bad meat, and then eventually they'll just bring you an even bigger diseased steak on a nicer plate with better garnish (and maybe a glass of champagne!) But they never get the quality of the steak to match the promise of the sizzle.
When I bought an iPaq-based AWM system (with XM WX) a few years ago, Control Vision was sweet as pie during their 30 day return period. They worked with me to address the bugs and basically bent over backwards to make sure that I was happy. I used the system as supplemental navigation/weather on a trip from PA to CO and back, and it was definitely helpful, even though the iPaq crapped out a few times (due to heat), and their software crashed a couple of times. But for the most part, it was workable.
Then, I began to discover that their navigation and airport data was full of errors--incorrect runways, frequencies, etc. Obstacles that were on top of hills didn't alarm due to the midwest plains-based thresholds that they had set in the software. Although not necessarily Control Vision's fault, the XM WX antenna was incredibly sensitive to placement, and would often lose signal. I didn't realize how lacking the product was until Garmin launched the 396 and I bought one. On the Garmin, everything just worked, and continues to work to this day without a hiccup.
When I approached Control Vision with issues after the 30 day return period, they were NOTICEABLY less interested in my satisfaction. I eventually wrote an e-mail to the company's president, Jay, expressing my disappointment, and his response was basically that I'm stuck with the product and I'm going to have to wait until IF and when they decide to address any of the outstanding issues. At that time at least, CV used new features to drive sales, and wasn't as focused on fixing prior problems and producing a high-quality, stable application.
Historically, it is my perception that Control Vision has been hostile to development on Apple's platform, probably because they can't source the hardware cheaply and bundle it into a high-margin solution. I'm not sure what development tool they're using for the multi-platform support, but I am skeptical that the program will be as nicely done as ForeFlight, for example, and to a certain extent Control Vision will be at the mercy of the development tools for feature support and stability on specific platforms. I haven't heard whether the program takes advantage of the new high resolution display on the iPad 3, but I'm not holding my breath.
With all of that said, AWM is likely better than ForeFlight as a hand held GPS replacement. I would probably be more likely to take AWM over WingX, based on my observations during the trial period with WingX. However, since I have a Garmin in the plane, I am more interested in plate, chart, and airport data than in navigation, and in those areas, ForeFlight excels over the others that I've used.
JKG