does the E7 integrate SIP dialing as well as N900...
I love my n900 for telepathy/ SIP integration.... i make close to 30 minutes of SIP-to-phone calls daily when I am outside my country.... and the quality is great....

i have a problem with my n900 at the moment (headphone issue, cant listen to music at all).... and the only reason i am not giving it to NC is I fear E7 doesnt have good enough SIP capabilities (if i get it in exchange that is)