Hotspot Shield
Hotspot Shield provides security as you travel to different wi-fi locations
http://hotspotshield.com/download/HSS-live-install.exe - 2Mb - Download - Screenshot

iPIG WiFi Hotspot VPN Security
Using powerful 256-bit AES encryption technology, the iOpus Private Internet Gateway (iPIG) creates a secure "tunnel" that protects your inbound and outbound communications (Email, Web, IM, VOIP, calls, FTP, etc. ) at any Wi-Fi hotspot or wired network. ... You just start your favorite web browser, email client or chat software and switch the iPig encryption on: iPig grabs all Internet traffic before it leaves your PC and encrypts it securely! ... iPig also works with all major firewall software like Zonealarm or Norton Internet Security.
http://www.iOpus.com/download/ipig-setup.exe - 655Kb - Download - Screenshot

iPIG Secure Access VPN Server
Set up a VPN server in less than 1 minute. Free client software. Using powerful 256-bit AES encryption technology, the iOpus Private Internet Gateway (iPIG) creates a secure "tunnel" that protects your inbound and outbound communications (Email, Web, IM, VOIP, calls, FTP, etc. ... ) at any Wi-Fi hotspot or wired network. ... You just start your favorite web browser, email client or chat software and switch the iPig encryption on: iPig grabs all Internet traffic before it leaves your PC and encrypts it securely!
http://www.iOpus.com/download/ipig-server-setup.exe - 642Kb - Download - Screenshot

NCP Secure Entry CE Client
NCP Secure Entry Client for communication with any IPSec gateway (compatibility list at http://www. ncp. de). The Client runs on Windows CE devices, Mobile 5 also supported. Any wireless networks can be used as communication media: The Internet, WiFi, GSM, GPRS, UMTS. ... IP-NAT, Stateful Packet Inspection, defined filter rules, Friendly Net Detection, and secure hotspot logon are part of the firewall. ... The user can optionally authenticate to the destination gateway via OTP (RSA SecurID Ready), or certificates (soft certificates, smart cards, MMC) in a PKI.
ftp://ftp2.ncp.de/products/ncp/secentcl/bin/wince/SecEntCE.zip - 4Mb - Download - Screenshot

NCP Secure Entry Client for Win32
NCP Secure Entry Client for communication with any IPSec gateway (compatibility list at http://www. ncp. de). It supports all transmission networks like ISDN, the analog network, xDSL, Internet, GSM, GPRS, IMTS, LAN, WLAN, and it runs under all Windows operating systems. ... IP-NAT, Stateful Packet Inspection, defined filter rules, Friendly Net, and hotspot detection (automatic detection of the current network environment and activation of the corresponding filter rules). ... The Entry Client can also be implemented in IT environments without permanent IP addresses.
ftp://ftp2.ncp.de/products/ncp/secentcl/bin/win32/SecEntCl.zip - 8Mb - Download - Screenshot

NCP Secure Entry Linux Client
NCP Secure Entry Client for communication with any IPSec gateway (compatibility list at http://www. ncp. de). It supports all transmission networks like ISDN, the analog network, xDSL, Internet, GSM, GPRS, IMTS, LAN, WLAN, and it runs under all Windows operating systems. ... IP-NAT, Stateful Packet Inspection, defined filter rules, Friendly Net, and hotspot detection (automatic detection of the current network environment and activation of the corresponding filter rules). ... The Entry Client can also be implemented in IT environments without permanent IP addresses.
ftp://ftp2.ncp.de/products/ncp/secentcl/bin/Linux/SecEntLi.zip - 7Mb - Download - Screenshot