Sounds good, I'll try and address the above comments.
In regards to Traffic. Currently, you can touch that traffic icon and touch "Traffic Information" under the options menu to get this detail information. When you get closer to traffic, in "Alert" or "Critical Alert" phase, we will show those details in the alert message and you can even touch "More Info" for more details.
NexRad is currently shown on the Weather Map mode, it's on our wishlist to add this to the Sectionals and other Charts. Stay Tuned, this is actually a very complex add as it deals with totally different map and chart projections.
As for the TAFs versus Metars. This if prompted by the user. If you touch Weather and tap the screen, you will first get a TAF the first time. If you view a Metar and exit, it will come up with a Metar the next time. Basically, we take you back to the last weathe view (TAF, METAR, Winds) that you viewed last.
I hope this helps everyone and answers your questions and concerns. Please feel free to contact us at 888-200-5129 if you have any other questions or need further assistance. Have a great week.