There lots of improvement in Visual Studio 2010 over past version. Below are some new great features of Visual Studio 2010 –

Better code intellisense
Visual Studio 2010 has better code intellisense support which make it easier for look for methods and functions. You can now easily search for inline keyword, or even use abbreviation to search for properties or methods.

Improved multi-targeting support
Though multi-targeting was there in Visual Studio 2008, but the Visual Studio 2010 has got better support for it. With its new “reference assemblies”, it provides 100% accurate intellisense.

Multi-monitor support
Earlier, all editor and child windows are hosted inside a single parent windows, but with the new IDE you can host every single child windows as separate windows outside of the main windows. You can move these to other monitors which makes it to support multiple monitors.

Enhanced code navigations
Visual Studio 2010 has introduces a number of new features to improve the searching and navigational capabilities. The new “Navigate to” features provides you a fast and incremental search of functions, classes, properties etc.
With its “View call Hierarchy” features can can discover from where a particular method or property is called which helps you to refactor and make you code even better.Another features “Highlight Reference” helps of to discover what part of code is using a particular variable.

Parallel computing

With Visual Studio 2010, now you can take advantage of multi-core processor by using parallel computing feature. This help you to write code which can execute even faster. Visual Studio also supports parallel debugging for the parallel programming.