I've been playing a lot of Ingress lately using my Samsung Galaxy SIII (i9300).

On push bike.

To create a more practical and enjoyable Ingress experience I really need to:

1. Make the handset more secure - there's too much temptation to carry it or chuck it in a loose pocket between closely clustered portals.
2. Provide a secure location where I can keep the phone awake between portals for XM collection and faster GPS lock.
3. Utilise an external battery pack - Ingress is a power hungry animal and it chews on the battery like you wouldn't believe. To charge it I need a secure location that I can run a cable to.

Does anyone have any experience with bike-mounts or a good armband, available in (or shippable to) NZ for the Samsung Galaxy S3?

They'd need to have:

• Charger access for the battery pack (which would then loop over into my backpack).
• Touch-screen support (I see a lot of cheapy armbands don't support screen use).
• Easy attach/detach (for bikemount so that when I do need to step away from the bike for those hard to reach portals I can do so quickly).

I'll also happily take recommendations for battery packs :) - the 6k and 12k Power-Pond packs look pretty good as does the 7k Sony unit...