Is Streaming API the right way to go for Caching data on a local server ?
We want to build a .net service which would cache salesforce data locally so that we can reduce the number of API calls. We don't want to keep on polling for data every few minutes.
Will Streaming API help us in this case ? Has anyone done anything like this ?
Any suggestions / links/ tutorials would be helpful.

Thanks.

How do i get a signed request field inside of an Apex class ? I mean in .Net I can get it like this:

string signedRequest = Request.Params["signed_request"];

Is there a similar "Request" object that i can use in Apex to get the "signed request" ?

Can i create a custom object and add a functionality in Chatter Feed saying New "custom Object" like below ? Can i do this using Canvas app. Any tutorial or link will be greatly appreciated.
Thanks.

Can i create a custom object and add a functionality in Chatter Feed saying New "custom Object" like below ? Can i do this using Canvas app. Any tutorial or link will be greatly appreciated.
Thanks.

How do i get a signed request field inside of an Apex class ? I mean in .Net I can get it like this:

string signedRequest = Request.Params["signed_request"];

Is there a similar "Request" object that i can use in Apex to get the "signed request" ?

Can i create a custom object and add a functionality in Chatter Feed saying New "custom Object" like below ? Can i do this using Canvas app. Any tutorial or link will be greatly appreciated.
Thanks.