The best replacement for phonegap is titanium.

The best alternatives to phonegap are rated as following:
★★★★★  titanium
★★★★★  native
★★★★  appcelerator
★★★  sencha
★★  cordova
★★  corona
★★  jquery mobile
★★  xamarin
★  phonegap build
★  intel xdk
★  rhomobile
★  native ios
★  steroids
★  objective c
★  cocoonjs
★  appmobi
★  webview
  worklight
  appgyver
  native apps
  native app
  sencha touch
  xcode
  rhodes
  titanium sdk

Your alternative for phonegap is not listed? Suggest!
Speaking about phonegap, one probably shouldn't forget about jquery mobile.

Other search terms related to phonegap and their ratings are:
★★★★★ jquery mobile
★★★★ xcode
★★★ jquery
★★★ angularjs
★★ bootstrap
★★ sencha touch
★★ android studio
★ meteor
★ ios
★ sencha
★ cordova
★ jqtouch
parse
indexeddb
enyo
You have in mind a companion for phonegap and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of phonegap in all years. Click on graph for more.
phonegap
titanium
native