• Move the LINQPad specific XML configuration in the *.linq (and add *.cs too, if not possible already) files inside comment, so the same source is usable e.g. in VS.
• ...and permit using such *.cs (or other X# language) files just like *.linq files.
• Refresh changed file automagically (if not changed in LINQPad, or verify if file already changed in LINQPad)

This would allow quite fluent cross-usage of code between various development tools and LINQPad. And shoud not be very hard to implement?