Yes, check out the search app. there is a button on the bottom to access Google apps. it's not exactly a dedicated gmail app but it's more convenient than just using IE.
Thanks. Yes, indeed. It works quite well actually. One thing I found that there is no in-app setting to adjust the font size/ scale. I have to use the Ctrl + command. In IE, however, you can set the font size within the app - I think you can do this in some other apps too.
That notwithstanding, this is a viable alternative. I have also been using the Gmail Touch app and that is not too bad either. Some stuff, however, is missing - like viewing labels, live tiles etc. If the developer can fix that then I would buy it (to essentially get rid of the in-app ads). I am not sure Google is ever going to get around making a dedicated app for Gmail (which is, in my opinion, a rather stupid thing that they are doing).
Edit: That Gmail Touch app is being rapidly updated. Now there are the views of the labels etc. Still rough around the edges, but its getting there!