I just upgraded my Desktop Mac to LION. So far I found three application programs that are no longer working. Starting with LION, Mac OS-X does not support any application that are designed for PowerPC CPU. I will not upgrade to LION on my MacBook Pro.
カワシマヒロキ（ひーさん） 
坂本祐央子（さかもとゆみこ） 
Seattle Execs. 
木曽町田中屋豆腐 
橋本諭弥 
さわ 
ロッキーおしょう 
ClockLink 
Tetsuro Watanabe 
水琴晶子（みことあきこ） 
さち