knox,
I'm sure you'll get a pile of responses saying to use paper maps and use proper planning and I'd agree. However I use gps daily but always carry maps for planning and reference and see nothing wrong with doing so.
Yes, I agree with you on both counts.
I'm firmly in the "finger on the map" camp, having learnt to fly non-radio in the UK, but it seems foolish not to take advantage of a well-established technology like GPS, particularly for improving SA in terms of airspace and terrain.
In February, I had a flight from Tauranga to Tarawera and back in a Tecnam Golf and I was really impressed with the built-in GPS - I cannot remember which model. Fascinating watching nearby hills on the map change from red to green as we climbed.