Alex F.
I've noticed before the nice coincidence that the vowel and liquid  
_a e i l o r u_ are one each on the buttons 2 through 8.

Wait...  What?  I'm familiar with this type of phone pad:

Are there different kinds?  If so, this might not work as well.

"A male love inevivi i'ala'i oku i ue pokulu'ume o heki a."
"No eternal reward will forgive us now for wasting the dawn."

-Jim Morrison