You need to use TurboTax Self-Employed if you want an on-line product. This will allow you to work a single return from multiple devices.
You need to use TurboTax CD/Download Home and Business if you prefer a Windows product. You can complete five tax returns, but on the same computer.
For more product information, follow these links:
TurboTax On-line Self Employed
TurboTax
Home & Business