iGoogle provides an alternative way to access your gmail. Just add Gmail gadget for iGoogle, it allow you to quickly view and send/reply messages without leaving iGoogle page. You can set Gmail gadget to open your messages in the full version.
If you use Gmail gadget for iGoogle frequently, you will notice that this gadget is missing some of the features from Gmail actual version.
There are occasions where you’d not able to aceesss GMail. If there’s a gmail outage (then you’d see 502 Server Error) or there might be scenario where you want to see your gmail on the fly or you don’t have gmail access in your office/work. In these situations you can access gmail using iGoogle (Google personal homepage app).
iGoogle is personalized Google page (Google homepage). You can use Google Gadgets to add your choice of news, photos, weather, and stuff from across the web to your page. You can select a visual theme to decorate your homepage.