Multiple Terminals in one Terminal Window in Windows XP/7?

If you are using Putty or Cygwin in Windows, you surely want to use something like Terminator in Linux. You should be able to have multiple terminal open and work direktly. The question is if there is one from Open Source community that we can use ?
There is commercial SecureCRT that allow you to have a tabbed interfac. But what anyone does not know is this is possible to have tabbed interface in Putty. Here is the list of tools avaialble to enable a tabbed intarface to Putty:

1. Superputty  - what I do not like with this is this require .NET Framework 2.0 or newer as this is written in C#. This is OK if this works properly but you have too keep track of which version of .Net is installed and will not work immediately if you have wrong .Net version.
2. Kitty - is like Extended Putty with anything you know about Putty.

Which one is best? This is up to your choice.