Could ChibiStudio exceptions show values in hexadecimal rather than decimal? (Would save having to convert).
For example in DebugProxy.java (full path D:\ChibiStudio\svn_osdn\branches\chibistudio_trunk\tools\chibios-rt6_debug_support\src\org\chibios\tools\eclipse\debug\utils\DebugProxy.java in case you can't remember it!) lines 171 and 194:
throw new DebugProxyException("error reading memory at " + String.format("0x%08X", base));
throw new DebugProxyException("error reading memory at " + String.format("0x%08X", address));
There are undoubtedly more; those are the ones I was looking at.
It would also be useful to be able to copy and paste data from the Trace and possibly Threads tabs of the debug plugin (spreadsheet format, I would think). (Or a simple "Export as CSV" button would do, if easier!).