But if you use the command line then you can use any target you'd like. Check out this post by Liraz (from the comments section of that same blog post), there's also more info in the TKLBAM FAQ. AFAIK you do need to sign up for Amazon S3 (which does involve entering credit card details) but if you don't use it you won't get charged. Because it is charged by the GB I have heard of some people (with small amounts of data) using S3 and still not getting charged!
If you wish to use Amazon S3 then you need to pay them
But if you use the command line then you can use any target you'd like. Check out this post by Liraz (from the comments section of that same blog post), there's also more info in the TKLBAM FAQ. AFAIK you do need to sign up for Amazon S3 (which does involve entering credit card details) but if you don't use it you won't get charged. Because it is charged by the GB I have heard of some people (with small amounts of data) using S3 and still not getting charged!