This could be the coolest and the best tool to interact with your iphone on your computer out there. You can do virtually all the things you wanted to do for a long time.
Install app's on your iphone.
Back your notes and other data from your iphone
Create appointments in your calendar on your iphone
Edit and copy notes from your iphone
Copy photos from your iphone
Read, export your sms from your iphone
See the call log with individual timings of each call from your iphone
Organize safari bookmarks from your iphone on your computer
Change themes add themes to your iphone
Change ring tones to your iphone
Change other sounds on your iphone
Also access the file on your iphone via file manager.
You can save all the data on to your PC too. Here is where you can get the iphone PC suite.