I've noticed recently that one of my debugging workflows is to set a few breakpoints or tracepoints, debug, then disable or move some of the breakpoints. Thus navigating to existing breakpoints (rather than just adding new ones or deleting/disabling ALL existing ones) is something I have to do (and is currently slowing me down). Though visual studio has a panel to show a list of breakpoints I don't like this panel (or, for example, the find results panels) as it requires mouse input or too much text copying (not so bad when the target happens to be in the current file; particularly bad when the target is in a different project).

Does VS or ViEmu have any keyboard shortcuts or commands for navigating to existing breakpoints?

A simple solution that I would be happy with is to have a pair of shortcuts for navigating to the next/previous breakpoint (in the current file).
A more complicated solution that would be more versatile would be to have breakpoints represented as a special (non-printing?) character at the beginning of the line (either column zero or just before the first non-whitespace character--which is where the breakpoint panel claims the breakpoint is) so that they can be found with standard vi-style search (and maybe find in files?)--even found with some context, for example finding all breakpoints on "if" statements--and navigated with n/N.