Umm, lets see. I would say yes, but get SmartTime, as it is much better. And you can set up Push Gcal now in native Calendar, if that helps.
I love Saisuke. It is a much better calendar app than the built in calendar. I love the different styles, and the month and week views with text. And the Gcal integration works great.
There is a free version of Saisuke. Try that before! Same is for SmartTime. I'm currently using SmartTime (free Version) for my Tasks (as this is done realy good there) and use the beta google-active-sync for my built-in calendar. But I had to drop my work-calendar, because the iPod can only sync against one Exchange account. I dropped the free version of Saisuke, as the google-sync was the only feature which I realy used (although, Saisuke has a better calendar view, than the original)