I'm using CM9 nightly (20120712 i.e. today).
I need to talk securely, without the chance of eavesdropping, to someone who also has CM9 nightly (not sure how up-to-date but not more than 1 month old).
What apps/webapps can I use to do this? Ideally I would like to be able to talk but messaging/email would be fine.
Are apps like Twitter/Gmail/Gtalk secure end-to-end? I do have HTTPS set up on my account but don't know how far it applies to the mobile version.
But really I am willing to use anything as long as it known to be secure enough to prevent MITM attacks and eavesdropping by unwanted parties.