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Some things are better universally. That bad part is proprietary. It would be best if it was universal and open.

To have 37 different implementations to achieve this, might be a feature. To have 37 different protocols surely is not.

There should preferably be one open protocol for proximity based wireless ad-hoc file sharing. This protocol can then be implemented by operating systems and/or userland implementations

I turn up at a university to make a presentation. I want to send my powerpoint to the room computer. Which of the 37 apps will it have pre-installed?