Google App Engine beta
Easy dynamic Web sites
- Fast and easy Web-app development, uses Google's cloud of computers
- API not as rich as Amazon's SimpleDB, limit on resources
That's all just a bit too cynical. While the terms and conditions include a number of scary phrases giving Google the power to do pretty much anything with your baby, they seem like rational responses to the scary prospect of letting anyone put applications on your cloud.
Copyright violations, spammers and pornographers must keep the lawyers at Google up late at night. The lock-in is a real problem, but it is mitigated a bit by some of the open source licences. Python and Django are pretty much free if you want to take your application and run with it. The hurdles and caveats are annoying, but the App Engine formula seems like a serious play for the low end of the marketplace where small developers create niche applications.
The service is best for the simple applications that plan on staying simple for the time being. While the cloud's ability to scale the application quickly is a nice feature, the limitations of the service should be constraining for anyone who has big dreams built on complex code. The sandbox offers only limited services, and the legal issues are still new.
While the Google lawyers did a pretty good job of anticipating many of the potential potholes for the service, that doesn't mean they can go away. Google reserves the right to "pre-screen, review, flag, filter, modify, refuse or remove any or all Content from the Service". Will Google be a good hosting provider and treat the small fry like a partner, or will it just nuke entire applications when a DMCA notice shows up? Time will tell.
It's worth thinking a bit about the long-term plan when your hairdresser chats away about a brilliant web application while cutting your hair. Some whispers we've heard suggest that Google might just steal your application, perhaps copying it. We're not sure why hosting it with Google would make it any easier for them, but maybe forcing you to map it onto their architecture might help a bit.
There are any number of competitors. Amazon has its own cloud, but it takes a very different approach, giving the user an empty Linux shell. That may offer plenty of freedom, but it offers none of the hand-holding. It will probably take you longer to install a JVM on Amazon's Elastic Compute Cloud than to spin up a three-page website with Google's App Engine. But Amazon's SimpleDB also offers a richer API, including real web services for REST and SOAP queries.
The biggest competitors may be the old-school web-hosting programs that let you share a server for a few bucks a month. They may not scale automatically, but they give you plenty of control and an older, more established type of user agreement. And while they may not be as magic as Amazon, they have a number of tools for migrating customers to bigger boxes.
The last time we asked our shared hosting service to move to a new server with a different version of MySQL, it was done in an hour or two. That's not automatic, but it took only an email message.
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