ZenVPN is a simple VPN solution that perfectly works for personal use. So here is its brief description:
We offer 128-bit encryption, support Windows (with our own client software) , OS X, iPhone and Android. Multiple simultaneous active connections permitted. Plans starts from $2.95 / week for the plan with 5gb/day data transfer limit. Also we have torrents-friendly unlimited plans, they start from $5.95 / week.
Supported protocols are OpenVPN, L2TP/IPsec and PPTP.