While looking for IPA files, I've found that 4PDA has a decent collection of legacy ones. Just scroll down to the red archive buttons for old versions. Here are a few interesting ones in the messaging section:
Newsify
Dolphin Zero
ooVoo
Twitterific 5
Echofon Pro
Zangi (Now Zangi Messenger)
Line
IM+
Viber
There are more in other sections of the site. I don't know anyone who can access the site, so if anyone can, please get some old ipas off the site!
Newsify
Dolphin Zero
ooVoo
Twitterific 5
Echofon Pro
Zangi (Now Zangi Messenger)
Line
IM+
Viber
There are more in other sections of the site. I don't know anyone who can access the site, so if anyone can, please get some old ipas off the site!