I make little comparing xlanguage contra EMLH (-bad, +good)
- EMLH -> not switching interface language (system language)/ I know , there are some hack to do this, by new version EMLH will make this better ? ;P/
+ EMLH -> tag for images selecting languages [ mlimg], so we can easy tag what part of content is translated

Wish list
1. new tag for images selecting single language like [ mlimg:en] to sign ready translated part in this languages only - ads new flag in future if this some part of contents will be translated in next languages - sometimes this is long, step by step process ;)( now if You have 5 languages on site You get 5 flags suggesting 5 translation ready ;( )
2. changing system language