[bikitan]

Great idea. One issue that I'm seeing with English/Japanese in particular is that while there is a significant overlap of names that are orthographically similar, the pronunciation varies considerably to the extent that the same pronunciation would not be intelligible as a name in both languages.

For example the name Marie is on there, which in English would be "ma-REE" while in Japanese it would be like "ma-ree-ay"

I imagine anyone using this tool would have enough knowledge of both languages to cull those results, though, so not really a problem in practice. Just an observation.