Psychological First Aid Mobile App
Centre for Clinical Interventions (not an app, but a good resource for therapists)
Medscape (iOS, Android, Blackberry)
STAT Depression Screener/PHQ-9 (iOS)
Google Voice – a number that is safe to give to clients
Why you should never use most cloud backup/sync services (plus reviews of Spideroak and Wuala)
Other issues on technology in therapy, including SMS, video therapy, etc.