JVEsoft, ltd. is offering a Push Notifications (raw requests) component (TJVEPushNotification) with PushWoosh Service Integration, as part of their commerial 21 component Delphi XE5 cross platform component suite. This component implements the Push Notifications support, with regard to the Operating System integration. The component does not provide the communication with your serverside. This is handled by the TJVEPushWoosh component (PushWoosh Service Integration), which provides an interface to the PushWoosh service for push notifications delivery; see http://www.pushwoosh.com/ for more details. This component takes care of all the required communications with this server.
There is no free trial for this commercial component set but the developer has released a lot of apps using the components so they seem pretty solid. To read more about these two components or any others in the set, you can read JVEsoft’s Full 28 pages Technical Manual
When your ready, head on over to their website and pick your self up a copy of their 21 component Delphi XE5 cross platform component suite.