I use Dropbox to sync my tablet files to multiple PCs. It's not HIPAA compliant. There might be a way to get Dropbox to be HIPAA compliant. The main problem with anything that his HIPAA compliant is that it will be cumbersome. To be compliant you have to restrict access to files based on a login and record access of the logins. And that's certainly not how dropbox works.
Symform claims to be HIPAA compliant and offers 10GB free: http://www.symform.com/our-solutions/compliance/hipaa-compliance/ However, the reviews don't look very good: http://community.spiceworks.com/product/34979-symform
Found another product SpiderOak, one reviewer mentioned this as the only "Zero Knowledge" cloud provider: http://www.zdnet.com/blog/datacenter/will-your-cloud-be-hipaa-compliant/1212 (search spideroak on the page) Their own statement: https://spideroak.com/faq/questions/20/is_spideroak_hipaa_compliant/ First 2 gb free, than $100 per year per 100 gb for personal account. May give this a try. Edit: just signed up, I like it better than Dropbox. Please feel free to use my referral link, me and you can both get 1 gb free when you sign up through this link: https://spideroak.com/download/referral/630c6907d79e7fbcfe1e409c7b005323
Yea. I saw that today. The new service is called Mega. http://mega.co.nz/ (New Zealand URL). It has mandatory encryption. But probably is not going to make HIPAA compliance (no activity logs, etc.) The site is DNSing for me since launch. Apparently from excessive traffic.