What you can do...
With real time access to individual channel raw RF data you could:
1. Implement your own delay sum beamformer in an external PC
2. You could then process the beamformed data and display the B-mode image in real time on the PC
3. You could go one step ahead and design and implement your cutting edge full matrix beamformer with your brightest ideas.
4. With the external trigger option, you could use it for your Photo Acoustic Imaging research
The options are endless once you have access to the raw data.