Is there any way I can lock the iPhone screen rotation into the landscape view?

It seems like the G-Forces on my motorcycle trick the iPhone into thinking it's being rotated (I guess it is a little bit) and the screen rotates on me, which is distracting and annoying.
I find if I use the iPhone's built-in rotation lock, it locks it into Portrait view (up-right), and I want it locked in landscape view. I can't find an option inside the TomTom App (v1.9) to disable this.
jB
Comments
It's a shame the iphone's built in lock only supports portrait? But i will pass on your suggestion as a possible improvement for a future release.
Thanks!
Apple update is trying to push TomTom Go on me when I've already paid a premium price for a product with free lifetime map updates and I'm not about to upgrade if the product still falls so far short for motorcycle use. If I have to buy a dedicated device my inner voice is screaming Garmin right now.
Welcome to the forum!
As the old Navigation for iPhone/iPad app is no longer developed I'm afraid Sinny's comment above is the last of this.
Please note, that as a user of the old app you can get a free 3 year Unlimited Navigation licence for the new GO Mobile app. For more about the new app, please see the following links:
How do I upgrade to Unlimited Navigation on the TomTom GO Mobile app?
GO Mobile app for iPhone and the old Navigation app
How many free kilometres can I use with the TomTom GO Mobile app?
Which features will be added in the future to the GO Mobile for iPhone app?
Reinstalling the Navigation app for iPhone
Cheers, Mikko