According to wikipedia.com Siri is an intelligent software assistant and knowledge navigator functioning as a personal assistant application for iOS. The application uses a natural language user interface to answer questions, make recommendations, and perform actions by delegating requests to a set of web services. Apple claims that the software adapts to the user's individual preferences over time and personalizes results, as well as accomplishing tasks such as finding recommendations for nearby restaurants, or getting directions. Siri is officially availible on iPhone 4s and iPad 3. Other users of iDevices such as iPad 1st gen, iPhone 4, iPhone 3gs or iPod Touch (all) can get Siri to gadgets by installing Spire tweak. Spire is a tool that ports Siri to non officially supported devices. Here is the siri proxy list we foud at iPadsHouse.

List of all Siri Proxy Servers we found online

Name: aftersoft.ru
Host URL: https://188.120.232.184:443
Type: Free
Type the following URL into Safari browser: http://aftersoft.ru/ca.pem to install certificate

Name: http://root-hacks.blogspot.com/
Host URL: https://siri-bh.no-ip.org:1000-1009
Type: Free
Download certificate http://siri-bh.no-ip.org/blog-4.crt

Name: SpiritJB.org
Host URL: http://Spiritjb.org/spire/
Type: Free

Name: Unknown
Host URL: https://205.185.119.17:2000/
Type: Free

Name: siri.schiefen
Host URL: http://www.siri.schiefen.ws
Type: Free

Name: Siri.Cd-Team
Host URL: https://siri.cd-team.org/
Type: Free

Name: Unknown
Host URL: https://97.188.76.85:443/
Type: Free

Name: iphone-my.com
Host URL: http://iphone-my.com
Type: Free

Name: Unknown
Host URL: https://192.4.53.201:3544/
Type: Free

Name: jimmykane
Host URL: http://jimmykane.dyndns-server.com/
Type: You have to donate your own working iPhone 4S keys to get access

Name: http://lowkey.net.my
Host URL: http://lowkey.net.my
Type: Donation required to http://lowkey.net.my/donate/

Name: http://technetec.com/?page_id=123
Host URL: see bellow
Type: Paid. $10/month

The servers from the list used to work, however almost all of them has not stable connection. In many cases connection fails, so you have to try several times to connect to the server or the proxies become unavailable in an hour or two and then come back alive in couple hours. These problems happen because of the high traffic as Siri Proxies became very popular among Apple device users.

List of Scams Proxy Server

Warning: We found that many people confirmed they were scamed by next sites. Do NOT donate to any of these sites.

Status: Scam
Source: http://www.sirikeys.com/
Fee: $5/month

Status: Scam
Source: siriproxyserver.t15.org
Fee: $5/week, $15/month, $30/forever

Status: The website got hacked, do not donate
Source: http://jakewilliamsmith.com/siri/

You can also download and install your own Siri Proxy Server in order to share it with your friends or family. We will publish the guide soon.