In my attempt to get more information's regarding the world of Differential Probes I discovered one manufacturer in Taiwan which did a great job in his website about describing the suggested applications VS bandwidth of those Differential Probes.
The information is scattered by model, and so I will make a small summary here.
25 MHz Switching Power Supply Design
Motor Drive Design
Electronic Ballast Design
CRT Display Design
50 MHzPrecise Power Semiconductor Device Measurement
Switching Power Supply Design
Precise Measurement of Power Converter
Precise Measurement of Motor Drive
70 MHzHigh Voltage Floating Measurement
Voltage Surge Measurement
Power Electronics System Design
100 MHzSwitching Power Supply Design
Measuring Drive Circuits of Power Semiconductor Device
Current Shunt Measurement
Power Converter Measurement
200 MHzTelecom Measurement
xDSL Applications
High Speed Power Measurement
Differential Line Transmitter and Receiver Design
Thanks to Sapphire Instruments Co. Ltd Taiwanhttp://www.sapphire.com.tw/