Facetime between iphone 4 and ipod touch 4g

as you all may (or may not) know, an iphone 4 cannot facetime an ipod touch 4g UNLESS the iphone 4 is running 4.1


does anyone know of a tweak or mod that will allow an iPhone 4 (jailbroken) running 4.0.1 or 4.0 to facetime an email address (ipod touch 4g) ???

is anyone working on one ?

With news of a 4.1 bootrom based jailbreak on the horizon I doubt there will be much focus on tweaks for 4.0.1

i know its coming soon (but not soon enough)