Add comments to examples explaining that pulumi/cloud is a preview package
MODIFY
cloud-ts-url-shortener-cache-http/cache.ts
cloud-ts-url-shortener-cache-http/cache.ts
-// Copyright 2016-2017, Pulumi Corporation. All rights reserved.
+// Copyright 2016-2018, Pulumi Corporation. All rights reserved.
+
+// Note: @pulumi/cloud is a preview package demonstrating how to create cross-cloud Pulumi
+// components. If you are targeting a specific cloud like AWS, Azure, or GCP, we recommend you use
+// platform-specific packages like @pulumi/aws, @pulumi/azure or @pulumi/gcp. These packages give
+// you full access to the breadth of the platform's capabilities and comes with many abstractions to
+// make developing against that platform easier.
import * as pulumi from "@pulumi/pulumi";
import * as cloud from "@pulumi/cloud";

MODIFY
cloud-ts-url-shortener-cache-http/index.ts
cloud-ts-url-shortener-cache-http/index.ts
// Copyright 2016-2018, Pulumi Corporation. All rights reserved.
+// Note: @pulumi/cloud is a preview package demonstrating how to create cross-cloud Pulumi
+// components. If you are targeting a specific cloud like AWS, Azure, or GCP, we recommend you use
+// platform-specific packages like @pulumi/aws, @pulumi/azure or @pulumi/gcp. These packages give
+// you full access to the breadth of the platform's capabilities and comes with many abstractions to
+// make developing against that platform easier.
+
import * as pulumi from "@pulumi/pulumi";
import * as cloud from "@pulumi/cloud";
import * as cache from "./cache";

MODIFY
cloud-ts-url-shortener-cache/cache.ts
cloud-ts-url-shortener-cache/cache.ts
// Copyright 2016-2017, Pulumi Corporation. All rights reserved.
+// Note: @pulumi/cloud is a preview package demonstrating how to create cross-cloud Pulumi
+// components. If you are targeting a specific cloud like AWS, Azure, or GCP, we recommend you use
+// platform-specific packages like @pulumi/aws, @pulumi/azure or @pulumi/gcp. These packages give
+// you full access to the breadth of the platform's capabilities and comes with many abstractions to
+// make developing against that platform easier.
+
import * as cloud from "@pulumi/cloud";
import * as config from "./config";

MODIFY
cloud-ts-url-shortener-cache/index.ts
cloud-ts-url-shortener-cache/index.ts
// Copyright 2016-2018, Pulumi Corporation. All rights reserved.
+// Note: @pulumi/cloud is a preview package demonstrating how to create cross-cloud Pulumi
+// components. If you are targeting a specific cloud like AWS, Azure, or GCP, we recommend you use
+// platform-specific packages like @pulumi/aws, @pulumi/azure or @pulumi/gcp. These packages give
+// you full access to the breadth of the platform's capabilities and comes with many abstractions to
+// make developing against that platform easier.
+
import * as pulumi from "@pulumi/pulumi";
import * as cloud from "@pulumi/cloud";
import * as cache from "./cache";

MODIFY
cloud-ts-url-shortener/index.ts
cloud-ts-url-shortener/index.ts
// Copyright 2016-2018, Pulumi Corporation. All rights reserved.
+// Note: @pulumi/cloud is a preview package demonstrating how to create cross-cloud Pulumi
+// components. If you are targeting a specific cloud like AWS, Azure, or GCP, we recommend you use
+// platform-specific packages like @pulumi/aws, @pulumi/azure or @pulumi/gcp. These packages give
+// you full access to the breadth of the platform's capabilities and comes with many abstractions to
+// make developing against that platform easier.
+
import * as cloud from "@pulumi/cloud-aws";
import { Output } from "@pulumi/pulumi"; // for output property

MODIFY
cloud-ts-voting-app/index.ts
cloud-ts-voting-app/index.ts
// Copyright 2017, Pulumi Corporation. All rights reserved.
+// Note: @pulumi/cloud is a preview package demonstrating how to create cross-cloud Pulumi
+// components. If you are targeting a specific cloud like AWS, Azure, or GCP, we recommend you use
+// platform-specific packages like @pulumi/aws, @pulumi/azure or @pulumi/gcp. These packages give
+// you full access to the breadth of the platform's capabilities and comes with many abstractions to
+// make developing against that platform easier.
+
import * as pulumi from "@pulumi/pulumi";
import * as cloud from "@pulumi/cloud";

Add comments to examples explaining that pulumi/cloud is a preview package (#353)