Thanks for inviting me to the beta tester group. I hope I can help.
The iPad is working better for gas prices now, but still needs some work with the price entry screen.
Here it is in landscape:
And here it is in portrait:
Note the huge empty space in portrait mode. The keypad is tiny and difficult to see.
I've never seen what this looks like on the iPhone. Does it also have that much unused space?
For comparison, here's the price entry screen on the GasBuddy app (it forces portrait mode and shares the UI with the iPhone):
This is much simpler: only ten digits plus a delete key. For someone trying to post prices while moving, this is easier and less likely to produce errors. Errors are compounded in Waze's version since if you attempt to post while moving, and the price isn't accepted, the only way to fix it is to hit "back" and load the list of stations again, and the one you were posting may be more than 500m away by that point.
I think a simpler keyboard like this would be a huge improvement. Include a decimal point if you're not going to be able to default to an assumed decimal for each country. That's still only 12 keys. All the %&() are useless and don't need to be there. My number one error when posting prices is hitting comma instead of period.
CM, USA/Canada ∙ iPhone 5 ∙ iOS 6.1.4