OpenHardwareMonitor.
Not a gadget, but it shows everything.
If you want temps and stuff, you can drag them into your tray beside the time. Much better than gadgets.
...on a T-Mobile plan? 1. Has good recording quality (for sounds).
2. Can set many speed dial numbers.
3. Gets a good number of results for ringtones and wallpapers when you search to buy them.
4. Can preview ringtones before you purchase them.
5. Can send/ receive pictures and videos as well as...