I cant find anywhere info on the fact that the support would be discontinued for Nokia N-series phones, so it might be that N900 and N9 might survive the axe this time. Only WP7 and symbian are singled out by skypes official pages, and nothing is seen on the support page about discontinuation for N-series phones. The symbian support pages has the information about the support ending as does the WP7, but N-series does not. Keeping fingers crossed.