The official announcement says:
Whisper Systems is known for a variety of software including:The Whisper Systems software as our users know it will live on (and we have some surprises in store that we're excited about), but there is unfortunately a transition period where we will have to temporarily take our products and services offline. RedPhone service will be interrupted immediately, but FlashBack users have a month to pull off any backup data they would like before that service also goes offline.
- WhisperCore - Device and data security for Android.
- Flashback - Encrypted backups for Android.
- TextSecure - Encrypted texts for Android.
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