I use gmail integrated with my ipod touch via gesture controls. I have a jailbroken iPod Touch and this is how I do it (all google services):

hold status bar for docs
swipe status bar left for calendar
swipe status bar right for my tasks (in which I keep all my lists [notes/bible study/health notes such as blood pressure readings for each week all dated/wishlists of books/music/movies/games/car maintenance/freewriting on the go jots/grocery lists/birthday gift wishes/work notes/and way more])
I hold the home button and bring up all my google bookmarks to access my favorite sites/links without having to type
I put my google reader integrated with Pulse News app for ipod touch making it more beautiful to look at
I have an app for my google photos via picasa
google books are on my homescreen next to my ibooks/readitlater/bible/posterous blogs

anyways, I LOVE GOOGLE TOO! Sorry to ramble, but hopefully you will find some use in this especially in the way that I use tasks. I find swipe controls amazing so that it’s less apps to open and easier to remember to update my calendar/tasks since I’m naturally bad with that.

One caveat, as mentioned by another commenter: Google is unreachable and completely unresponsive to any form of help request. They create a service and offer it as is, with whatever help or information you can find on user forums. This policy makes Google appear somewhat imperious, even arrogant, but since most of the services (with the exception of Google Voice, which we can’t get in Canada) work so well from the get-go, the trade-off is worth it.

I have drunk the Gool-Aid, and it is good.

And I sync EVERYTHING w/my Blackberry Curve 2. So I’m always connected. A good thing.

Sorry that happened to you, that stinks.

My bank and all the companies that were involved during this period were very considerate, and worked hard at getting everything sorted out. However, Google was useless. There isn’t any customer service for Gmail. There’s an extensive help file system, which didn’t address my problem in any way, and there’s a bulletin board where other users will post instructions on how to do things. However, there is NO way to contact a real employee to get real help.

I ended up talking with a good friend of mine, who happens to work at Google, and he actually went to his boss, and there was nothing that could be done. Google wouldn’t shut down the email address that the crooks were using, because it was “your word against theirs”. Nevermind that it was also my bank’s word and the word of several companies against theirs, too.

If you want to use Google for everything, and I’ve gone back to using it for most email, that’s fine, but just be aware that there is NO help. There is no way to contact an employee, there is no customer service or support. If you lose a a few hundred email messages, as has happened according to people on the Gmail bulletin board, there isn’t anything you can do. You’re just out. So be sure to back everything up, don’t just trust that Google will take care of everything.

I really enjoy using Google for a lot of things, but after my experience, I back everything up and make sure that all my email is stored in two places.