For activities, add an extras bundle to the intent:
Bundle extras = new Bundle();
...
intent.putExtras(extras);
Then retrieve them from your tab's intent:
Bundle extras = getIntent().getExtras();
For fragments, set an arguments bundle:
Fragment fragment = new TabFragment();
Bundle args = new Bundle();
...
fragment.setArguments(args);
Then retrieve the arguments within your fragment:
Bundle args = getArguments();