I recently started using LastPass to simplify online login process in no.of websites. Its really simple to use and secures your account from security breaches like Gawker media accounts hack. Now LastPass is available on Zune marketplace. Here is the description of the application from the LastPass website,
LastPass is now available for download in the Windows Phone 7 marketplace!
Once installed, the app allows you to view your vault and search for your saved sites:
After logging in to your account, a small menu appears at the bottom of the screen, allowing you to select "launch mode", in which tapping a site launches it in the embedded browser, or "details mode", in which tapping a site allows you to view the data saved in the site entry.
Thank you for your patience as we resolved issues and pushed forward through the approval process!