I'm sorry I can't help you. But, if it makes me you feel any better, my phone pre-dates the Centro. IIRC, around 2006 or 2007 (treo 700wx).
Ha- hey, that doesn't count, its a Windows Mobile phone! I used to have heaps of software libraries for that. Palm OS, on the other hand, not so much.
In case anyone is wondering why I picked the Centro in this day and age... My wife does a lot of email, her phone broke, she won't let me upgrade her past SERO Basic, Centros come in pink and go for less than $30 used these days.
Sold.
I'll be honest, I never liked Pam OS (and still don't), but this thing is mighty cute.