Allthough you can connect to a TFS 2010 server with your existing Visual Studio 2008 (SP1) environment, most features are not available to you. To improve your experience you can install the Visual Studio Team System 2008 Service Pack 1 Forward Compatibility Update for Team Foundation Server 2010. This is an update for the 2008 SP1 version of Visual Studio Team System Team Explorer and allows the 2008 SP1 version to work with the Team Foundation Server 2010. This update will allow teams to move forward and use the Team Foundation Server 2010 server even if part of the team continues to use the Team Explorer 2008 SP1 client.
As a developer there are a lot of small tasks you need to do as part of your coding, debugging and testing activities. DevToys is an offline windows app that tries to help you with these tasks. Instead of using different websites you get a fully offline experience offering help for a large list of tasks. Many tools are available. Here is the current list: Converters JSON <> YAML Timestamp Number Base Cron Parser Encoders / Decoders HTML URL Base64 Text & Image GZip JWT Decoder Formatters JSON SQL XML Generators Hash (MD5, SHA1, SHA256, SHA512) UUID 1 and 4 Lorem Ipsum Checksum Text Escape / Unescape Inspector & Case Converter Regex Tester Text Comparer XML Validator Markdown Preview Graphic Color B