I always want to know how much memory a program takes. If some program uses a lot of memory, I wont use it, because it will slow down the system. With so many applications installed, sometimes I don’t know that some application has background process (such as Agile Messenger), and collectively this makes the free memory becomes very low.
With Tasky, I can see the list of running program (including background programs) and I can see which program takes a lot of memory, and kill the program. This was created by TeleSoftas, and can be downloaded from http://www.telesoftas.com.