Broxom

It looks like the IRS has not been aligned. The procedure for doing this is covered in the tutorials included with the NGX. Short version: Confirm GPS location on the FMC and align the IRS on the topmost overhead panel. Edit: From the support site: http://support.precisionmanuals.com/kb/a38/how-do-i-align-the-irs.aspx

Cool, sounds like you have that under control. I just wanted to make sure you knew about it. On the money issue, I think $30 might be a bit on the steep side personally, but I would definitely pay more than $5.

This looks really interesting and would be something I would find useful. There was a similar effort with an iOS app a few years (2?) ago where there was some backlash from PMDG, so I would highly recommend that you contact them directly and work out any legal issues in advance. It worked out for the other app in the end, so I am sure you can come to terms with each other.

The FMC differentiates between TA for climb and descent. This allows you to enter different altitudes for the departure and destination airports. In each case you normally use the TA for the country of the airport, as it assumed that the transition will occur within the airspace of that country. Cruising usually occurs far above TA, so it isn't really relevant for this part of the flight.