Yes, that's what i said...I'm building an e-shop for a client and every time i update the theme i need to translate it again.....it does not make sense!
I love your theme but a solution has to be found for this. If you add English .po and . mo files i will make the translation with poedit and then i will only have to translate the new terms.......and not all the theme from the beginning.
All good wordpress themes in evanto work like that and even have a database of ready translated .po and .mo files donated by their buyers and i wouldn't mind giving the Greek one to you. Please make english po and mo files with the new update