EPS export tested with Inkscape 0.47+devel on OS X 10.5.8:
exporting '100217_ov.svg' to EPS
a) as is
b) vertical line: alpha set to 128
c) vertical line: opacity set to 50%
EPS can't handle opacity -> in c) all content in the EPS file is rasterized, whereas text in a) and b) is exported as text and only the vertical line in b) seems rasterized.
EPS export tested with Inkscape 0.47+devel on OS X 10.5.8:
exporting '100217_ov.svg' to EPS
a) as is
b) vertical line: alpha set to 128
c) vertical line: opacity set to 50%
EPS can't handle opacity -> in c) all content in the EPS file is rasterized, whereas text in a) and b) is exported as text and only the vertical line in b) seems rasterized.